service.cpp revision 9605a945f7a497c0307b512b9cd762f2d23973ca
1bac3299720623f4226bca103b26260052732ad30Tom Cherry/* 2bac3299720623f4226bca103b26260052732ad30Tom Cherry * Copyright (C) 2015 The Android Open Source Project 3bac3299720623f4226bca103b26260052732ad30Tom Cherry * 4bac3299720623f4226bca103b26260052732ad30Tom Cherry * Licensed under the Apache License, Version 2.0 (the "License"); 5bac3299720623f4226bca103b26260052732ad30Tom Cherry * you may not use this file except in compliance with the License. 6bac3299720623f4226bca103b26260052732ad30Tom Cherry * You may obtain a copy of the License at 7bac3299720623f4226bca103b26260052732ad30Tom Cherry * 8bac3299720623f4226bca103b26260052732ad30Tom Cherry * http://www.apache.org/licenses/LICENSE-2.0 9bac3299720623f4226bca103b26260052732ad30Tom Cherry * 10bac3299720623f4226bca103b26260052732ad30Tom Cherry * Unless required by applicable law or agreed to in writing, software 11bac3299720623f4226bca103b26260052732ad30Tom Cherry * distributed under the License is distributed on an "AS IS" BASIS, 12bac3299720623f4226bca103b26260052732ad30Tom Cherry * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13bac3299720623f4226bca103b26260052732ad30Tom Cherry * See the License for the specific language governing permissions and 14bac3299720623f4226bca103b26260052732ad30Tom Cherry * limitations under the License. 15bac3299720623f4226bca103b26260052732ad30Tom Cherry */ 16bac3299720623f4226bca103b26260052732ad30Tom Cherry 17bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "service.h" 18bac3299720623f4226bca103b26260052732ad30Tom Cherry 19bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <fcntl.h> 209605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes#include <inttypes.h> 2124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes#include <linux/securebits.h> 221b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes#include <sched.h> 231b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes#include <sys/mount.h> 241b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes#include <sys/prctl.h> 25081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv#include <sys/resource.h> 26bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <sys/stat.h> 27081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv#include <sys/time.h> 28bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <sys/types.h> 29b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET#include <sys/wait.h> 30bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <termios.h> 31af9ba4dc6ca98e136e887b0baa59b72fb8302dd3Dan Albert#include <unistd.h> 32bac3299720623f4226bca103b26260052732ad30Tom Cherry 33bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <selinux/selinux.h> 34bac3299720623f4226bca103b26260052732ad30Tom Cherry 354f71319df011d796a60a43fc1bc68e16fbf7d321Elliott Hughes#include <android-base/file.h> 36da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes#include <android-base/parseint.h> 374f71319df011d796a60a43fc1bc68e16fbf7d321Elliott Hughes#include <android-base/stringprintf.h> 38f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes#include <android-base/strings.h> 39bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <cutils/android_reboot.h> 40081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv#include <system/thread_defs.h> 41bac3299720623f4226bca103b26260052732ad30Tom Cherry 42f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner#include <processgroup/processgroup.h> 43f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner 44bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "action.h" 45bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "init.h" 46bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "init_parser.h" 47bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "log.h" 48bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "property_service.h" 49bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "util.h" 50bac3299720623f4226bca103b26260052732ad30Tom Cherry 51da46b392f10d2809b5696632f67485f272ec5698Elliott Hughesusing android::base::ParseInt; 52b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::StringPrintf; 53b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::WriteStringToFile; 54b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 55344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesstatic std::string ComputeContextFromExecutable(std::string& service_name, 56344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes const std::string& service_path) { 57344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::string computed_context; 58344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 59344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_con = nullptr; 60344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_filecon = nullptr; 61344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 62344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getcon(&raw_con) == -1) { 63344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "could not get context while starting '" << service_name << "'"; 64344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 65344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 66344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::unique_ptr<char> mycon(raw_con); 67344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 68344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getfilecon(service_path.c_str(), &raw_filecon) == -1) { 69344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "could not get file context while starting '" << service_name << "'"; 70344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 71344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 72344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::unique_ptr<char> filecon(raw_filecon); 73344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 74344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* new_con = nullptr; 75344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes int rc = security_compute_create(mycon.get(), filecon.get(), 76344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes string_to_security_class("process"), &new_con); 77344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc == 0) { 78344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes computed_context = new_con; 79344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes free(new_con); 80344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 81344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc == 0 && computed_context == mycon.get()) { 82344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "service " << service_name << " does not have a SELinux domain defined"; 83344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 84344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 85344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc < 0) { 86344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "could not get context while starting '" << service_name << "'"; 87344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 88344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 89344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return computed_context; 90344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 91344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 921b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obesstatic void SetUpPidNamespace(const std::string& service_name) { 931b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes constexpr unsigned int kSafeFlags = MS_NODEV | MS_NOEXEC | MS_NOSUID; 941b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 951b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // It's OK to LOG(FATAL) in this function since it's running in the first 961b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // child process. 971b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (mount("", "/proc", "proc", kSafeFlags | MS_REMOUNT, "") == -1) { 98e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't remount(/proc) for " << service_name; 991b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1001b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1011b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (prctl(PR_SET_NAME, service_name.c_str()) == -1) { 102e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't set name for " << service_name; 1031b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1041b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1051b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t child_pid = fork(); 1061b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid == -1) { 107e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't fork init inside the PID namespace for " << service_name; 1081b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1091b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1101b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid > 0) { 1111b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // So that we exit with the right status. 1121b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes static int init_exitstatus = 0; 1131b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes signal(SIGTERM, [](int) { _exit(init_exitstatus); }); 1141b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1151b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t waited_pid; 1161b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes int status; 1171b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes while ((waited_pid = wait(&status)) > 0) { 1181b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This loop will end when there are no processes left inside the 1191b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespace or when the init process inside the PID namespace 1201b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // gets a signal. 1211b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (waited_pid == child_pid) { 1221b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes init_exitstatus = status; 1231b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1241b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1251b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (!WIFEXITED(init_exitstatus)) { 1261b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(EXIT_FAILURE); 1271b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1281b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(WEXITSTATUS(init_exitstatus)); 1291b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1301b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 1311b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 132344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesstatic void ExpandArgs(const std::vector<std::string>& args, std::vector<char*>* strs) { 133344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::vector<std::string> expanded_args; 134344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes expanded_args.resize(args.size()); 135344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes strs->push_back(const_cast<char*>(args[0].c_str())); 136344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes for (std::size_t i = 1; i < args.size(); ++i) { 137344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!expand_props(args[i], &expanded_args[i])) { 138344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(FATAL) << args[0] << ": cannot expand '" << args[i] << "'"; 139344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 140344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes strs->push_back(const_cast<char*>(expanded_args[i].c_str())); 141344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 142344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes strs->push_back(nullptr); 143344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 144344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 145bac3299720623f4226bca103b26260052732ad30Tom CherryServiceEnvironmentInfo::ServiceEnvironmentInfo() { 146bac3299720623f4226bca103b26260052732ad30Tom Cherry} 147bac3299720623f4226bca103b26260052732ad30Tom Cherry 148bac3299720623f4226bca103b26260052732ad30Tom CherryServiceEnvironmentInfo::ServiceEnvironmentInfo(const std::string& name, 149bac3299720623f4226bca103b26260052732ad30Tom Cherry const std::string& value) 150bac3299720623f4226bca103b26260052732ad30Tom Cherry : name(name), value(value) { 151bac3299720623f4226bca103b26260052732ad30Tom Cherry} 152bac3299720623f4226bca103b26260052732ad30Tom Cherry 153bac3299720623f4226bca103b26260052732ad30Tom CherryService::Service(const std::string& name, const std::string& classname, 154bac3299720623f4226bca103b26260052732ad30Tom Cherry const std::vector<std::string>& args) 1559605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes : name_(name), classname_(classname), flags_(0), pid_(0), 1569605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes crash_count_(0), uid_(0), gid_(0), namespace_flags_(0), 1571b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes seclabel_(""), ioprio_class_(IoSchedClass_NONE), ioprio_pri_(0), 158310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen priority_(0), oom_score_adjust_(-1000), args_(args) { 159bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.InitSingleTrigger("onrestart"); 160bac3299720623f4226bca103b26260052732ad30Tom Cherry} 161bac3299720623f4226bca103b26260052732ad30Tom Cherry 162bac3299720623f4226bca103b26260052732ad30Tom CherryService::Service(const std::string& name, const std::string& classname, 1631b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes unsigned flags, uid_t uid, gid_t gid, 16424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const std::vector<gid_t>& supp_gids, 16524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const CapSet& capabilities, unsigned namespace_flags, 1661b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes const std::string& seclabel, 1671b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes const std::vector<std::string>& args) 1681b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes : name_(name), classname_(classname), flags_(flags), pid_(0), 1699605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes crash_count_(0), uid_(uid), gid_(gid), 17024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes supp_gids_(supp_gids), capabilities_(capabilities), 17124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes namespace_flags_(namespace_flags), seclabel_(seclabel), 17224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes ioprio_class_(IoSchedClass_NONE), ioprio_pri_(0), priority_(0), 17324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes oom_score_adjust_(-1000), args_(args) { 174bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.InitSingleTrigger("onrestart"); 175bac3299720623f4226bca103b26260052732ad30Tom Cherry} 176bac3299720623f4226bca103b26260052732ad30Tom Cherry 177bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::NotifyStateChange(const std::string& new_state) const { 178bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_EXEC) != 0) { 179bac3299720623f4226bca103b26260052732ad30Tom Cherry // 'exec' commands don't have properties tracking their state. 180bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 181bac3299720623f4226bca103b26260052732ad30Tom Cherry } 182bac3299720623f4226bca103b26260052732ad30Tom Cherry 183b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string prop_name = StringPrintf("init.svc.%s", name_.c_str()); 184bac3299720623f4226bca103b26260052732ad30Tom Cherry if (prop_name.length() >= PROP_NAME_MAX) { 185bac3299720623f4226bca103b26260052732ad30Tom Cherry // If the property name would be too long, we can't set it. 186f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "Property name \"init.svc." << name_ << "\" too long; not setting to " << new_state; 187bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 188bac3299720623f4226bca103b26260052732ad30Tom Cherry } 189bac3299720623f4226bca103b26260052732ad30Tom Cherry 190bac3299720623f4226bca103b26260052732ad30Tom Cherry property_set(prop_name.c_str(), new_state.c_str()); 1919605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes 1929605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (new_state == "running") { 1939605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes prop_name += ".start"; 1949605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes uint64_t start_ns = time_started_.time_since_epoch().count(); 1959605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes property_set(prop_name.c_str(), StringPrintf("%" PRIu64, start_ns).c_str()); 1969605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes } 197bac3299720623f4226bca103b26260052732ad30Tom Cherry} 198bac3299720623f4226bca103b26260052732ad30Tom Cherry 199ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughesvoid Service::KillProcessGroup(int signal) { 2001e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes LOG(INFO) << "Sending signal " << signal 2011e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes << " to service '" << name_ 2021e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes << "' (pid " << pid_ << ") process group..."; 2031e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes if (killProcessGroup(uid_, pid_, signal) == -1) { 2041e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes PLOG(ERROR) << "killProcessGroup(" << uid_ << ", " << pid_ << ", " << signal << ") failed"; 2051e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes } 2061e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes if (kill(-pid_, signal) == -1) { 2071e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes PLOG(ERROR) << "kill(" << pid_ << ", " << signal << ") failed"; 2081e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes } 209ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes} 210ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 211344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesvoid Service::SetProcessAttributes() { 21224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes // Keep capabilites on uid change. 21324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any() && uid_) { 21424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (prctl(PR_SET_SECUREBITS, SECBIT_KEEP_CAPS | SECBIT_KEEP_CAPS_LOCKED) != 0) { 21524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes PLOG(FATAL) << "prtcl(PR_SET_KEEPCAPS) failed for " << name_; 21624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 21724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 21824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 219e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes // TODO: work out why this fails for `console` then upgrade to FATAL. 220e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes if (setpgid(0, getpid()) == -1) PLOG(ERROR) << "setpgid failed for " << name_; 221344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 222344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (gid_) { 223344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setgid(gid_) != 0) { 224e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setgid failed for " << name_; 225344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 226344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 22780960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich if (setgroups(supp_gids_.size(), &supp_gids_[0]) != 0) { 22880960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich PLOG(FATAL) << "setgroups failed for " << name_; 229344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 230344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (uid_) { 231344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setuid(uid_) != 0) { 232e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setuid failed for " << name_; 233344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 234344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 235344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!seclabel_.empty()) { 236344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setexeccon(seclabel_.c_str()) < 0) { 237e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "cannot setexeccon('" << seclabel_ << "') for " << name_; 238344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 239344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 240344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (priority_ != 0) { 241344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setpriority(PRIO_PROCESS, 0, priority_) != 0) { 242e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setpriority failed for " << name_; 243344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 244344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 24524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any()) { 24624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (!SetCapsForExec(capabilities_)) { 24724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes LOG(FATAL) << "cannot set capabilities for " << name_; 24824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 24924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 250344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 251344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 252bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::Reap() { 253bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_ONESHOT) || (flags_ & SVC_RESTART)) { 254ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 255bac3299720623f4226bca103b26260052732ad30Tom Cherry } 256bac3299720623f4226bca103b26260052732ad30Tom Cherry 25762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn // Remove any descriptor resources we may have created. 25862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 25962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::Clean, std::placeholders::_1)); 260bac3299720623f4226bca103b26260052732ad30Tom Cherry 261bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_EXEC) { 262f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << "SVC_EXEC pid " << pid_ << " finished..."; 263bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 264bac3299720623f4226bca103b26260052732ad30Tom Cherry } 265bac3299720623f4226bca103b26260052732ad30Tom Cherry 266bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 267bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RUNNING); 268bac3299720623f4226bca103b26260052732ad30Tom Cherry 269bac3299720623f4226bca103b26260052732ad30Tom Cherry // Oneshot processes go into the disabled state on exit, 270bac3299720623f4226bca103b26260052732ad30Tom Cherry // except when manually restarted. 271bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_ONESHOT) && !(flags_ & SVC_RESTART)) { 272bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 273bac3299720623f4226bca103b26260052732ad30Tom Cherry } 274bac3299720623f4226bca103b26260052732ad30Tom Cherry 275bac3299720623f4226bca103b26260052732ad30Tom Cherry // Disabled and reset processes do not get restarted automatically. 276bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & (SVC_DISABLED | SVC_RESET)) { 277bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 278bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 279bac3299720623f4226bca103b26260052732ad30Tom Cherry } 280bac3299720623f4226bca103b26260052732ad30Tom Cherry 2819605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes // If we crash > 4 times in 4 minutes, reboot into recovery. 2829605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes boot_clock::time_point now = boot_clock::now(); 283bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_CRITICAL) && !(flags_ & SVC_RESTART)) { 2849605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (now < time_crashed_ + 4min) { 2859605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (++crash_count_ > 4) { 2869605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes LOG(ERROR) << "critical process '" << name_ << "' exited 4 times in 4 minutes; " 287f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << "rebooting into recovery mode"; 288bac3299720623f4226bca103b26260052732ad30Tom Cherry android_reboot(ANDROID_RB_RESTART2, 0, "recovery"); 289bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 290bac3299720623f4226bca103b26260052732ad30Tom Cherry } 291bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 292bac3299720623f4226bca103b26260052732ad30Tom Cherry time_crashed_ = now; 2939605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes crash_count_ = 1; 294bac3299720623f4226bca103b26260052732ad30Tom Cherry } 295bac3299720623f4226bca103b26260052732ad30Tom Cherry } 296bac3299720623f4226bca103b26260052732ad30Tom Cherry 297bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RESTART); 298bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RESTARTING; 299bac3299720623f4226bca103b26260052732ad30Tom Cherry 300bac3299720623f4226bca103b26260052732ad30Tom Cherry // Execute all onrestart commands for this service. 301bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.ExecuteAllCommands(); 302bac3299720623f4226bca103b26260052732ad30Tom Cherry 303bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("restarting"); 304bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 305bac3299720623f4226bca103b26260052732ad30Tom Cherry} 306bac3299720623f4226bca103b26260052732ad30Tom Cherry 307bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::DumpState() const { 308f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << "service " << name_; 309f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << " class '" << classname_ << "'"; 310f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << " exec "<< android::base::Join(args_, " "); 31162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 31262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [] (const auto& info) { LOG(INFO) << *info; }); 313bac3299720623f4226bca103b26260052732ad30Tom Cherry} 314bac3299720623f4226bca103b26260052732ad30Tom Cherry 31524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obesbool Service::ParseCapabilities(const std::vector<std::string>& args, std::string* err) { 31624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_ = 0; 31724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 31824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 31924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const std::string& arg = args[i]; 32024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes int cap = LookupCap(arg); 32124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (cap == -1) { 32224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes *err = StringPrintf("invalid capability '%s'", arg.c_str()); 32324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes return false; 32424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 32524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_[cap] = true; 32624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 32724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes return true; 32824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes} 32924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 330177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseClass(const std::vector<std::string>& args, std::string* err) { 331b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry classname_ = args[1]; 332b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 333b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 334bac3299720623f4226bca103b26260052732ad30Tom Cherry 335177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseConsole(const std::vector<std::string>& args, std::string* err) { 336b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CONSOLE; 33770daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = args.size() > 1 ? "/dev/" + args[1] : ""; 338b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 339b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 340bac3299720623f4226bca103b26260052732ad30Tom Cherry 341177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseCritical(const std::vector<std::string>& args, std::string* err) { 342b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CRITICAL; 343b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 344b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 345bac3299720623f4226bca103b26260052732ad30Tom Cherry 346177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseDisabled(const std::vector<std::string>& args, std::string* err) { 347b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_DISABLED; 348b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_RC_DISABLED; 349b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 350b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 351bac3299720623f4226bca103b26260052732ad30Tom Cherry 352177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseGroup(const std::vector<std::string>& args, std::string* err) { 353b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry gid_ = decode_uid(args[1].c_str()); 354b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t n = 2; n < args.size(); n++) { 355b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry supp_gids_.emplace_back(decode_uid(args[n].c_str())); 356b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 357b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 358b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 359bac3299720623f4226bca103b26260052732ad30Tom Cherry 360177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParsePriority(const std::vector<std::string>& args, std::string* err) { 361da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes priority_ = 0; 362da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &priority_, 363da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes static_cast<int>(ANDROID_PRIORITY_LOWEST), 364da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes static_cast<int>(ANDROID_PRIORITY_HIGHEST))) { 365081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv *err = StringPrintf("process priority value must be range %d - %d", 366081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv ANDROID_PRIORITY_HIGHEST, ANDROID_PRIORITY_LOWEST); 367081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv return false; 368081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv } 369081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv return true; 370081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv} 371081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv 372177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseIoprio(const std::vector<std::string>& args, std::string* err) { 373da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[2], &ioprio_pri_, 0, 7)) { 374b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "priority value must be range 0 - 7"; 375b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 376b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 377b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 378b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args[1] == "rt") { 379b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_RT; 380b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "be") { 381b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_BE; 382b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "idle") { 383b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_IDLE; 384b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else { 385b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "ioprio option usage: ioprio <rt|be|idle> <0-7>"; 386b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 387bac3299720623f4226bca103b26260052732ad30Tom Cherry } 388bac3299720623f4226bca103b26260052732ad30Tom Cherry 389b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 390b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 391bac3299720623f4226bca103b26260052732ad30Tom Cherry 392177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseKeycodes(const std::vector<std::string>& args, std::string* err) { 393b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t i = 1; i < args.size(); i++) { 394da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes int code; 395da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (ParseInt(args[i], &code)) { 396da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes keycodes_.emplace_back(code); 397da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } else { 398da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes LOG(WARNING) << "ignoring invalid keycode: " << args[i]; 399da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } 400bac3299720623f4226bca103b26260052732ad30Tom Cherry } 401b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 402b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 403b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 404177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseOneshot(const std::vector<std::string>& args, std::string* err) { 405b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_ONESHOT; 406b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 407b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 408b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 409177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseOnrestart(const std::vector<std::string>& args, std::string* err) { 410b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 1, args.end()); 411b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry onrestart_.AddCommand(str_args, "", 0, err); 412b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 413b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 414bac3299720623f4226bca103b26260052732ad30Tom Cherry 415177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseNamespace(const std::vector<std::string>& args, std::string* err) { 4161b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 4171b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (args[i] == "pid") { 4181b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWPID; 4191b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespaces require mount namespaces. 4201b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 4211b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else if (args[i] == "mnt") { 4221b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 4231b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 4241b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes *err = "namespace must be 'pid' or 'mnt'"; 4251b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes return false; 4261b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 4271b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 4281b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes return true; 4291b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 4301b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 431310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissenbool Service::ParseOomScoreAdjust(const std::vector<std::string>& args, std::string* err) { 432da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &oom_score_adjust_, -1000, 1000)) { 433310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen *err = "oom_score_adjust value must be in range -1000 - +1000"; 434310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen return false; 435310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 436310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen return true; 437310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen} 438310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 439177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSeclabel(const std::vector<std::string>& args, std::string* err) { 440b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry seclabel_ = args[1]; 441b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 442b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 443b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 444177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSetenv(const std::vector<std::string>& args, std::string* err) { 445b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry envvars_.emplace_back(args[1], args[2]); 446b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 447b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 448b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 44962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyntemplate <typename T> 45062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzynbool Service::AddDescriptor(const std::vector<std::string>& args, std::string* err) { 45162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn int perm = args.size() > 3 ? std::strtoul(args[3].c_str(), 0, 8) : -1; 45262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn uid_t uid = args.size() > 4 ? decode_uid(args[4].c_str()) : 0; 45362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn gid_t gid = args.size() > 5 ? decode_uid(args[5].c_str()) : 0; 45462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::string context = args.size() > 6 ? args[6] : ""; 45562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 45662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn auto descriptor = std::make_unique<T>(args[1], args[2], uid, gid, perm, context); 45762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 45862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn auto old = 45962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::find_if(descriptors_.begin(), descriptors_.end(), 46062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [&descriptor] (const auto& other) { return descriptor.get() == other.get(); }); 46162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 46262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (old != descriptors_.end()) { 46362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn *err = "duplicate descriptor " + args[1] + " " + args[2]; 46462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return false; 46562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 46662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 46762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn descriptors_.emplace_back(std::move(descriptor)); 46862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return true; 46962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 47062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 47162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 472177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSocket(const std::vector<std::string>& args, std::string* err) { 473b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args[2] != "dgram" && args[2] != "stream" && args[2] != "seqpacket") { 474b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "socket type must be 'dgram', 'stream' or 'seqpacket'"; 475bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 476bac3299720623f4226bca103b26260052732ad30Tom Cherry } 47762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return AddDescriptor<SocketInfo>(args, err); 47862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 479b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 48062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 48162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzynbool Service::ParseFile(const std::vector<std::string>& args, std::string* err) { 48262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (args[2] != "r" && args[2] != "w" && args[2] != "rw") { 48362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn *err = "file type must be 'r', 'w' or 'rw'"; 48462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return false; 48562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 48662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if ((args[1][0] != '/') || (args[1].find("../") != std::string::npos)) { 48762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn *err = "file name must not be relative"; 48862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return false; 48962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 49062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return AddDescriptor<FileInfo>(args, err); 491bac3299720623f4226bca103b26260052732ad30Tom Cherry} 492bac3299720623f4226bca103b26260052732ad30Tom Cherry 493177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseUser(const std::vector<std::string>& args, std::string* err) { 494b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry uid_ = decode_uid(args[1].c_str()); 495b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 496b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 497b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 498177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseWritepid(const std::vector<std::string>& args, std::string* err) { 499b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry writepid_files_.assign(args.begin() + 1, args.end()); 500b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 501b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 502b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 503177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesclass Service::OptionParserMap : public KeywordMap<OptionParser> { 504b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrypublic: 505177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes OptionParserMap() { 506b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 507b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryprivate: 508b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry Map& map() const override; 509b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry}; 510b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 511177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli ObesService::OptionParserMap::Map& Service::OptionParserMap::map() const { 512b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry constexpr std::size_t kMax = std::numeric_limits<std::size_t>::max(); 513177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const Map option_parsers = { 51424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {"capabilities", 51524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {1, kMax, &Service::ParseCapabilities}}, 516177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"class", {1, 1, &Service::ParseClass}}, 517177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"console", {0, 1, &Service::ParseConsole}}, 518177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"critical", {0, 0, &Service::ParseCritical}}, 519177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"disabled", {0, 0, &Service::ParseDisabled}}, 520177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"group", {1, NR_SVC_SUPP_GIDS + 1, &Service::ParseGroup}}, 521177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"ioprio", {2, 2, &Service::ParseIoprio}}, 522177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"priority", {1, 1, &Service::ParsePriority}}, 523177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"keycodes", {1, kMax, &Service::ParseKeycodes}}, 524177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"oneshot", {0, 0, &Service::ParseOneshot}}, 525177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"onrestart", {1, kMax, &Service::ParseOnrestart}}, 526310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {"oom_score_adjust", 527310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {1, 1, &Service::ParseOomScoreAdjust}}, 528177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"namespace", {1, 2, &Service::ParseNamespace}}, 529177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"seclabel", {1, 1, &Service::ParseSeclabel}}, 530177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"setenv", {2, 2, &Service::ParseSetenv}}, 531177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"socket", {3, 6, &Service::ParseSocket}}, 53262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn {"file", {2, 6, &Service::ParseFile}}, 533177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"user", {1, 1, &Service::ParseUser}}, 534177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"writepid", {1, kMax, &Service::ParseWritepid}}, 535b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry }; 536177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return option_parsers; 537b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 538b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 539177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseLine(const std::vector<std::string>& args, std::string* err) { 540b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args.empty()) { 541b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "option needed, but not provided"; 542b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 543b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 544b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 545177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const OptionParserMap parser_map; 546177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes auto parser = parser_map.FindFunction(args[0], args.size() - 1, err); 547b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 548177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes if (!parser) { 549b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 550b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 551b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 552177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return (this->*parser)(args, err); 553b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 554b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 555bdeac39a42c1b9c7195ada1c30fe12f94314490fElliott Hughesbool Service::Start() { 556bac3299720623f4226bca103b26260052732ad30Tom Cherry // Starting a service removes it from the disabled or reset state and 557bac3299720623f4226bca103b26260052732ad30Tom Cherry // immediately takes it out of the restarting state if it was in there. 558bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~(SVC_DISABLED|SVC_RESTARTING|SVC_RESET|SVC_RESTART|SVC_DISABLED_START)); 559bac3299720623f4226bca103b26260052732ad30Tom Cherry 560bac3299720623f4226bca103b26260052732ad30Tom Cherry // Running processes require no additional work --- if they're in the 561bac3299720623f4226bca103b26260052732ad30Tom Cherry // process of exiting, we've ensured that they will immediately restart 562bac3299720623f4226bca103b26260052732ad30Tom Cherry // on exit, unless they are ONESHOT. 563bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 564bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 565bac3299720623f4226bca103b26260052732ad30Tom Cherry } 566bac3299720623f4226bca103b26260052732ad30Tom Cherry 567bac3299720623f4226bca103b26260052732ad30Tom Cherry bool needs_console = (flags_ & SVC_CONSOLE); 56870daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (needs_console) { 56970daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (console_.empty()) { 57070daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = default_console; 57170daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 57270daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman 57370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman bool have_console = (open(console_.c_str(), O_RDWR | O_CLOEXEC) != -1); 57470daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (!have_console) { 575f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "service '" << name_ << "' couldn't open console '" << console_ << "'"; 57670daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman flags_ |= SVC_DISABLED; 57770daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman return false; 57870daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 579bac3299720623f4226bca103b26260052732ad30Tom Cherry } 580bac3299720623f4226bca103b26260052732ad30Tom Cherry 581bac3299720623f4226bca103b26260052732ad30Tom Cherry struct stat sb; 582bac3299720623f4226bca103b26260052732ad30Tom Cherry if (stat(args_[0].c_str(), &sb) == -1) { 583f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "cannot find '" << args_[0] << "', disabling '" << name_ << "'"; 584bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 585bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 586bac3299720623f4226bca103b26260052732ad30Tom Cherry } 587bac3299720623f4226bca103b26260052732ad30Tom Cherry 588bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string scon; 589bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!seclabel_.empty()) { 590bac3299720623f4226bca103b26260052732ad30Tom Cherry scon = seclabel_; 591bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 592344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(INFO) << "computing context for service '" << name_ << "'"; 593344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes scon = ComputeContextFromExecutable(name_, args_[0]); 594344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (scon == "") { 595bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 596bac3299720623f4226bca103b26260052732ad30Tom Cherry } 597bac3299720623f4226bca103b26260052732ad30Tom Cherry } 598bac3299720623f4226bca103b26260052732ad30Tom Cherry 599a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << "starting service '" << name_ << "'..."; 600bac3299720623f4226bca103b26260052732ad30Tom Cherry 6011b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t pid = -1; 6021b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_) { 603344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes pid = clone(nullptr, nullptr, namespace_flags_ | SIGCHLD, nullptr); 6041b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 6051b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid = fork(); 6061b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 6071b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 608bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid == 0) { 609bac3299720623f4226bca103b26260052732ad30Tom Cherry umask(077); 610bac3299720623f4226bca103b26260052732ad30Tom Cherry 6111b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_ & CLONE_NEWPID) { 6121b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This will fork again to run an init process inside the PID 6131b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // namespace. 6141b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes SetUpPidNamespace(name_); 6151b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 6161b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 617bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& ei : envvars_) { 618bac3299720623f4226bca103b26260052732ad30Tom Cherry add_environment(ei.name.c_str(), ei.value.c_str()); 619bac3299720623f4226bca103b26260052732ad30Tom Cherry } 620bac3299720623f4226bca103b26260052732ad30Tom Cherry 62162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 62262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::CreateAndPublish, std::placeholders::_1, scon)); 623bac3299720623f4226bca103b26260052732ad30Tom Cherry 624b702b46f688bc3ba7f8dc2d35c6eb25482366c4cAnestis Bechtsoudis std::string pid_str = StringPrintf("%d", getpid()); 625bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& file : writepid_files_) { 626b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!WriteStringToFile(pid_str, file)) { 627f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "couldn't write " << pid_str << " to " << file; 628bac3299720623f4226bca103b26260052732ad30Tom Cherry } 629bac3299720623f4226bca103b26260052732ad30Tom Cherry } 630bac3299720623f4226bca103b26260052732ad30Tom Cherry 631bac3299720623f4226bca103b26260052732ad30Tom Cherry if (ioprio_class_ != IoSchedClass_NONE) { 632bac3299720623f4226bca103b26260052732ad30Tom Cherry if (android_set_ioprio(getpid(), ioprio_class_, ioprio_pri_)) { 633344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "failed to set pid " << getpid() 634f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << " ioprio=" << ioprio_class_ << "," << ioprio_pri_; 635bac3299720623f4226bca103b26260052732ad30Tom Cherry } 636bac3299720623f4226bca103b26260052732ad30Tom Cherry } 637bac3299720623f4226bca103b26260052732ad30Tom Cherry 638bac3299720623f4226bca103b26260052732ad30Tom Cherry if (needs_console) { 639bac3299720623f4226bca103b26260052732ad30Tom Cherry setsid(); 640bac3299720623f4226bca103b26260052732ad30Tom Cherry OpenConsole(); 641bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 642bac3299720623f4226bca103b26260052732ad30Tom Cherry ZapStdio(); 643bac3299720623f4226bca103b26260052732ad30Tom Cherry } 644bac3299720623f4226bca103b26260052732ad30Tom Cherry 645344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // As requested, set our gid, supplemental gids, uid, context, and 646344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // priority. Aborts on failure. 647344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes SetProcessAttributes(); 648bac3299720623f4226bca103b26260052732ad30Tom Cherry 649bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<char*> strs; 650344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes ExpandArgs(args_, &strs); 651bac3536cc949b3af0185e7b8f9b18318b37ac8b0Tom Cherry if (execve(strs[0], (char**) &strs[0], (char**) ENV) < 0) { 652f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "cannot execve('" << strs[0] << "')"; 653bac3299720623f4226bca103b26260052732ad30Tom Cherry } 654bac3299720623f4226bca103b26260052732ad30Tom Cherry 655bac3299720623f4226bca103b26260052732ad30Tom Cherry _exit(127); 656bac3299720623f4226bca103b26260052732ad30Tom Cherry } 657bac3299720623f4226bca103b26260052732ad30Tom Cherry 658bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid < 0) { 659f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "failed to fork for '" << name_ << "'"; 660bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 661bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 662bac3299720623f4226bca103b26260052732ad30Tom Cherry } 663bac3299720623f4226bca103b26260052732ad30Tom Cherry 664310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (oom_score_adjust_ != -1000) { 665310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen std::string oom_str = StringPrintf("%d", oom_score_adjust_); 666310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen std::string oom_file = StringPrintf("/proc/%d/oom_score_adj", pid); 667310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (!WriteStringToFile(oom_str, oom_file)) { 668310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen PLOG(ERROR) << "couldn't write oom_score_adj: " << strerror(errno); 669310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 670310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 671310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 6729605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes time_started_ = boot_clock::now(); 673bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = pid; 674bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RUNNING; 675ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 676ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes errno = -createProcessGroup(uid_, pid_); 677ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes if (errno != 0) { 678344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "createProcessGroup(" << uid_ << ", " << pid_ << ") failed for service '" 679344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes << name_ << "'"; 680ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes } 681bac3299720623f4226bca103b26260052732ad30Tom Cherry 682bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_EXEC) != 0) { 683344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(INFO) << android::base::StringPrintf( 684344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes "SVC_EXEC pid %d (uid %d gid %d+%zu context %s) started; waiting...", pid_, uid_, gid_, 685344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes supp_gids_.size(), !seclabel_.empty() ? seclabel_.c_str() : "default"); 686bac3299720623f4226bca103b26260052732ad30Tom Cherry } 687bac3299720623f4226bca103b26260052732ad30Tom Cherry 688bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("running"); 689bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 690bac3299720623f4226bca103b26260052732ad30Tom Cherry} 691bac3299720623f4226bca103b26260052732ad30Tom Cherry 692bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::StartIfNotDisabled() { 693bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_DISABLED)) { 694bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 695bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 696bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED_START; 697bac3299720623f4226bca103b26260052732ad30Tom Cherry } 698bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 699bac3299720623f4226bca103b26260052732ad30Tom Cherry} 700bac3299720623f4226bca103b26260052732ad30Tom Cherry 701bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::Enable() { 702bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_DISABLED | SVC_RC_DISABLED); 703bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_DISABLED_START) { 704bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 705bac3299720623f4226bca103b26260052732ad30Tom Cherry } 706bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 707bac3299720623f4226bca103b26260052732ad30Tom Cherry} 708bac3299720623f4226bca103b26260052732ad30Tom Cherry 709bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Reset() { 710bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESET); 711bac3299720623f4226bca103b26260052732ad30Tom Cherry} 712bac3299720623f4226bca103b26260052732ad30Tom Cherry 713bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Stop() { 714bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_DISABLED); 715bac3299720623f4226bca103b26260052732ad30Tom Cherry} 716bac3299720623f4226bca103b26260052732ad30Tom Cherry 717b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETvoid Service::Terminate() { 718b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 719b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ |= SVC_DISABLED; 720b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (pid_) { 721ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGTERM); 722b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET NotifyStateChange("stopping"); 723b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 724b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 725b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 726bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Restart() { 727bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 728bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Stop, wait, then start the service. */ 729bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESTART); 730bac3299720623f4226bca103b26260052732ad30Tom Cherry } else if (!(flags_ & SVC_RESTARTING)) { 731bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Just start the service since it's not running. */ 732bac3299720623f4226bca103b26260052732ad30Tom Cherry Start(); 733bac3299720623f4226bca103b26260052732ad30Tom Cherry } /* else: Service is restarting anyways. */ 734bac3299720623f4226bca103b26260052732ad30Tom Cherry} 735bac3299720623f4226bca103b26260052732ad30Tom Cherry 7369605a945f7a497c0307b512b9cd762f2d23973caElliott Hughesvoid Service::RestartIfNeeded(time_t* process_needs_restart_at) { 7379605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes boot_clock::time_point now = boot_clock::now(); 7389605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes boot_clock::time_point next_start = time_started_ + 5s; 7399605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (now > next_start) { 740bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RESTARTING); 741bac3299720623f4226bca103b26260052732ad30Tom Cherry Start(); 742bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 743bac3299720623f4226bca103b26260052732ad30Tom Cherry } 744bac3299720623f4226bca103b26260052732ad30Tom Cherry 7459605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes time_t next_start_time_t = time(nullptr) + 7469605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes time_t(std::chrono::duration_cast<std::chrono::seconds>(next_start - now).count()); 7479605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (next_start_time_t < *process_needs_restart_at || *process_needs_restart_at == 0) { 7489605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes *process_needs_restart_at = next_start_time_t; 749bac3299720623f4226bca103b26260052732ad30Tom Cherry } 750bac3299720623f4226bca103b26260052732ad30Tom Cherry} 751bac3299720623f4226bca103b26260052732ad30Tom Cherry 752ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes// The how field should be either SVC_DISABLED, SVC_RESET, or SVC_RESTART. 753bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::StopOrReset(int how) { 754ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // The service is still SVC_RUNNING until its process exits, but if it has 755ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // already exited it shoudn't attempt a restart yet. 756bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 757bac3299720623f4226bca103b26260052732ad30Tom Cherry 758bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((how != SVC_DISABLED) && (how != SVC_RESET) && (how != SVC_RESTART)) { 759ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // An illegal flag: default to SVC_DISABLED. 760bac3299720623f4226bca103b26260052732ad30Tom Cherry how = SVC_DISABLED; 761bac3299720623f4226bca103b26260052732ad30Tom Cherry } 762ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 763ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // If the service has not yet started, prevent it from auto-starting with its class. 764bac3299720623f4226bca103b26260052732ad30Tom Cherry if (how == SVC_RESET) { 765bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= (flags_ & SVC_RC_DISABLED) ? SVC_DISABLED : SVC_RESET; 766bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 767bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= how; 768bac3299720623f4226bca103b26260052732ad30Tom Cherry } 769bac3299720623f4226bca103b26260052732ad30Tom Cherry 770bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid_) { 771ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 772bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopping"); 773bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 774bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 775bac3299720623f4226bca103b26260052732ad30Tom Cherry } 776bac3299720623f4226bca103b26260052732ad30Tom Cherry} 777bac3299720623f4226bca103b26260052732ad30Tom Cherry 778bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::ZapStdio() const { 779bac3299720623f4226bca103b26260052732ad30Tom Cherry int fd; 780bac3299720623f4226bca103b26260052732ad30Tom Cherry fd = open("/dev/null", O_RDWR); 781bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 782bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 783bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 784bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 785bac3299720623f4226bca103b26260052732ad30Tom Cherry} 786bac3299720623f4226bca103b26260052732ad30Tom Cherry 787bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::OpenConsole() const { 78870daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman int fd = open(console_.c_str(), O_RDWR); 78970daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (fd == -1) fd = open("/dev/null", O_RDWR); 790bac3299720623f4226bca103b26260052732ad30Tom Cherry ioctl(fd, TIOCSCTTY, 0); 791bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 792bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 793bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 794bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 795bac3299720623f4226bca103b26260052732ad30Tom Cherry} 796bac3299720623f4226bca103b26260052732ad30Tom Cherry 797bac3299720623f4226bca103b26260052732ad30Tom Cherryint ServiceManager::exec_count_ = 0; 798bac3299720623f4226bca103b26260052732ad30Tom Cherry 799bac3299720623f4226bca103b26260052732ad30Tom CherryServiceManager::ServiceManager() { 800bac3299720623f4226bca103b26260052732ad30Tom Cherry} 801bac3299720623f4226bca103b26260052732ad30Tom Cherry 802bac3299720623f4226bca103b26260052732ad30Tom CherryServiceManager& ServiceManager::GetInstance() { 803bac3299720623f4226bca103b26260052732ad30Tom Cherry static ServiceManager instance; 804bac3299720623f4226bca103b26260052732ad30Tom Cherry return instance; 805bac3299720623f4226bca103b26260052732ad30Tom Cherry} 806bac3299720623f4226bca103b26260052732ad30Tom Cherry 807b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceManager::AddService(std::unique_ptr<Service> service) { 808b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry Service* old_service = FindServiceByName(service->name()); 809b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (old_service) { 810f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "ignored duplicate definition of service '" << service->name() << "'"; 811b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return; 812bac3299720623f4226bca103b26260052732ad30Tom Cherry } 813b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry services_.emplace_back(std::move(service)); 814bac3299720623f4226bca103b26260052732ad30Tom Cherry} 815bac3299720623f4226bca103b26260052732ad30Tom Cherry 816bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::MakeExecOneshotService(const std::vector<std::string>& args) { 817bac3299720623f4226bca103b26260052732ad30Tom Cherry // Parse the arguments: exec [SECLABEL [UID [GID]*] --] COMMAND ARGS... 818bac3299720623f4226bca103b26260052732ad30Tom Cherry // SECLABEL can be a - to denote default 819bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t command_arg = 1; 820bac3299720623f4226bca103b26260052732ad30Tom Cherry for (std::size_t i = 1; i < args.size(); ++i) { 821bac3299720623f4226bca103b26260052732ad30Tom Cherry if (args[i] == "--") { 822bac3299720623f4226bca103b26260052732ad30Tom Cherry command_arg = i + 1; 823bac3299720623f4226bca103b26260052732ad30Tom Cherry break; 824bac3299720623f4226bca103b26260052732ad30Tom Cherry } 825bac3299720623f4226bca103b26260052732ad30Tom Cherry } 826bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4 + NR_SVC_SUPP_GIDS) { 827f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called with too many supplementary group ids"; 828bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 829bac3299720623f4226bca103b26260052732ad30Tom Cherry } 830bac3299720623f4226bca103b26260052732ad30Tom Cherry 831bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg >= args.size()) { 832f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called without command"; 833bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 834bac3299720623f4226bca103b26260052732ad30Tom Cherry } 835bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<std::string> str_args(args.begin() + command_arg, args.end()); 836bac3299720623f4226bca103b26260052732ad30Tom Cherry 837bac3299720623f4226bca103b26260052732ad30Tom Cherry exec_count_++; 838b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string name = StringPrintf("exec %d (%s)", exec_count_, str_args[0].c_str()); 839bac3299720623f4226bca103b26260052732ad30Tom Cherry unsigned flags = SVC_EXEC | SVC_ONESHOT; 84024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes CapSet no_capabilities; 8411b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes unsigned namespace_flags = 0; 842bac3299720623f4226bca103b26260052732ad30Tom Cherry 843bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string seclabel = ""; 844bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 2 && args[1] != "-") { 845bac3299720623f4226bca103b26260052732ad30Tom Cherry seclabel = args[1]; 846bac3299720623f4226bca103b26260052732ad30Tom Cherry } 847bac3299720623f4226bca103b26260052732ad30Tom Cherry uid_t uid = 0; 848bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 3) { 849bac3299720623f4226bca103b26260052732ad30Tom Cherry uid = decode_uid(args[2].c_str()); 850bac3299720623f4226bca103b26260052732ad30Tom Cherry } 851bac3299720623f4226bca103b26260052732ad30Tom Cherry gid_t gid = 0; 852bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<gid_t> supp_gids; 853bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4) { 854bac3299720623f4226bca103b26260052732ad30Tom Cherry gid = decode_uid(args[3].c_str()); 855bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t nr_supp_gids = command_arg - 1 /* -- */ - 4 /* exec SECLABEL UID GID */; 856bac3299720623f4226bca103b26260052732ad30Tom Cherry for (size_t i = 0; i < nr_supp_gids; ++i) { 857bac3299720623f4226bca103b26260052732ad30Tom Cherry supp_gids.push_back(decode_uid(args[4 + i].c_str())); 858bac3299720623f4226bca103b26260052732ad30Tom Cherry } 859bac3299720623f4226bca103b26260052732ad30Tom Cherry } 860bac3299720623f4226bca103b26260052732ad30Tom Cherry 86124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes std::unique_ptr<Service> svc_p(new Service(name, "default", flags, uid, gid, supp_gids, 86224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes no_capabilities, namespace_flags, seclabel, 86324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes str_args)); 864bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!svc_p) { 865f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "Couldn't allocate service for exec of '" << str_args[0] << "'"; 866bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 867bac3299720623f4226bca103b26260052732ad30Tom Cherry } 868bac3299720623f4226bca103b26260052732ad30Tom Cherry Service* svc = svc_p.get(); 869bac3299720623f4226bca103b26260052732ad30Tom Cherry services_.push_back(std::move(svc_p)); 870bac3299720623f4226bca103b26260052732ad30Tom Cherry 871bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc; 872bac3299720623f4226bca103b26260052732ad30Tom Cherry} 873bac3299720623f4226bca103b26260052732ad30Tom Cherry 874bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::FindServiceByName(const std::string& name) const { 875bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc = std::find_if(services_.begin(), services_.end(), 876bac3299720623f4226bca103b26260052732ad30Tom Cherry [&name] (const std::unique_ptr<Service>& s) { 877bac3299720623f4226bca103b26260052732ad30Tom Cherry return name == s->name(); 878bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 879bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc != services_.end()) { 880bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc->get(); 881bac3299720623f4226bca103b26260052732ad30Tom Cherry } 882bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 883bac3299720623f4226bca103b26260052732ad30Tom Cherry} 884bac3299720623f4226bca103b26260052732ad30Tom Cherry 885bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::FindServiceByPid(pid_t pid) const { 886bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc = std::find_if(services_.begin(), services_.end(), 887bac3299720623f4226bca103b26260052732ad30Tom Cherry [&pid] (const std::unique_ptr<Service>& s) { 888bac3299720623f4226bca103b26260052732ad30Tom Cherry return s->pid() == pid; 889bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 890bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc != services_.end()) { 891bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc->get(); 892bac3299720623f4226bca103b26260052732ad30Tom Cherry } 893bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 894bac3299720623f4226bca103b26260052732ad30Tom Cherry} 895bac3299720623f4226bca103b26260052732ad30Tom Cherry 896bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::FindServiceByKeychord(int keychord_id) const { 897bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc = std::find_if(services_.begin(), services_.end(), 898bac3299720623f4226bca103b26260052732ad30Tom Cherry [&keychord_id] (const std::unique_ptr<Service>& s) { 899bac3299720623f4226bca103b26260052732ad30Tom Cherry return s->keychord_id() == keychord_id; 900bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 901bac3299720623f4226bca103b26260052732ad30Tom Cherry 902bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc != services_.end()) { 903bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc->get(); 904bac3299720623f4226bca103b26260052732ad30Tom Cherry } 905bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 906bac3299720623f4226bca103b26260052732ad30Tom Cherry} 907bac3299720623f4226bca103b26260052732ad30Tom Cherry 9088f7b9e3d39cdae8363816aa7bcbab0d79fd70ceaChih-Hung Hsiehvoid ServiceManager::ForEachService(const std::function<void(Service*)>& callback) const { 909bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& s : services_) { 910b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET callback(s.get()); 911bac3299720623f4226bca103b26260052732ad30Tom Cherry } 912bac3299720623f4226bca103b26260052732ad30Tom Cherry} 913bac3299720623f4226bca103b26260052732ad30Tom Cherry 914bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid ServiceManager::ForEachServiceInClass(const std::string& classname, 915bac3299720623f4226bca103b26260052732ad30Tom Cherry void (*func)(Service* svc)) const { 916bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& s : services_) { 917bac3299720623f4226bca103b26260052732ad30Tom Cherry if (classname == s->classname()) { 918bac3299720623f4226bca103b26260052732ad30Tom Cherry func(s.get()); 919bac3299720623f4226bca103b26260052732ad30Tom Cherry } 920bac3299720623f4226bca103b26260052732ad30Tom Cherry } 921bac3299720623f4226bca103b26260052732ad30Tom Cherry} 922bac3299720623f4226bca103b26260052732ad30Tom Cherry 923bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid ServiceManager::ForEachServiceWithFlags(unsigned matchflags, 924bac3299720623f4226bca103b26260052732ad30Tom Cherry void (*func)(Service* svc)) const { 925bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& s : services_) { 926bac3299720623f4226bca103b26260052732ad30Tom Cherry if (s->flags() & matchflags) { 927bac3299720623f4226bca103b26260052732ad30Tom Cherry func(s.get()); 928bac3299720623f4226bca103b26260052732ad30Tom Cherry } 929bac3299720623f4226bca103b26260052732ad30Tom Cherry } 930bac3299720623f4226bca103b26260052732ad30Tom Cherry} 931bac3299720623f4226bca103b26260052732ad30Tom Cherry 932b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceManager::RemoveService(const Service& svc) { 933bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc_it = std::find_if(services_.begin(), services_.end(), 934bac3299720623f4226bca103b26260052732ad30Tom Cherry [&svc] (const std::unique_ptr<Service>& s) { 935bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc.name() == s->name(); 936bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 937bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc_it == services_.end()) { 938bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 939bac3299720623f4226bca103b26260052732ad30Tom Cherry } 940bac3299720623f4226bca103b26260052732ad30Tom Cherry 941bac3299720623f4226bca103b26260052732ad30Tom Cherry services_.erase(svc_it); 942bac3299720623f4226bca103b26260052732ad30Tom Cherry} 943bac3299720623f4226bca103b26260052732ad30Tom Cherry 944b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceManager::DumpState() const { 945b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (const auto& s : services_) { 946b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry s->DumpState(); 947b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 948b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 949b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 950b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETbool ServiceManager::ReapOneProcess() { 951b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET int status; 952b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET pid_t pid = TEMP_FAILURE_RETRY(waitpid(-1, &status, WNOHANG)); 953b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (pid == 0) { 954b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return false; 955b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else if (pid == -1) { 956f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "waitpid failed"; 957b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return false; 958b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 959b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 960b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET Service* svc = FindServiceByPid(pid); 961b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 962b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET std::string name; 963b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (svc) { 964b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET name = android::base::StringPrintf("Service '%s' (pid %d)", 965b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET svc->name().c_str(), pid); 966b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else { 967b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET name = android::base::StringPrintf("Untracked pid %d", pid); 968b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 969b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 970b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (WIFEXITED(status)) { 971a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << name << " exited with status " << WEXITSTATUS(status); 972b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else if (WIFSIGNALED(status)) { 973a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << name << " killed by signal " << WTERMSIG(status); 974b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else if (WIFSTOPPED(status)) { 975a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << name << " stopped by signal " << WSTOPSIG(status); 976b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else { 977a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << name << " state changed"; 978b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 979b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 980b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (!svc) { 981b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return true; 982b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 983b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 984b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (svc->Reap()) { 985b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET waiting_for_exec = false; 986b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET RemoveService(*svc); 987b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 988b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 989b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return true; 990b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 991b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 992b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETvoid ServiceManager::ReapAnyOutstandingChildren() { 993b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET while (ReapOneProcess()) { 994b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 995b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 996b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 997b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::ParseSection(const std::vector<std::string>& args, 998b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string* err) { 999b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args.size() < 3) { 1000b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "services must have a name and a program"; 1001b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 1002b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1003b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1004b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry const std::string& name = args[1]; 1005b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!IsValidName(name)) { 1006b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = StringPrintf("invalid service name '%s'", name.c_str()); 1007b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 1008b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1009b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1010b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 2, args.end()); 1011b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry service_ = std::make_unique<Service>(name, "default", str_args); 1012b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 1013b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1014b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1015b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::ParseLineSection(const std::vector<std::string>& args, 1016b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry const std::string& filename, int line, 1017b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string* err) const { 1018177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return service_ ? service_->ParseLine(args, err) : false; 1019b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1020b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1021b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceParser::EndSection() { 1022b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (service_) { 1023b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ServiceManager::GetInstance().AddService(std::move(service_)); 1024b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1025b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1026b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1027b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::IsValidName(const std::string& name) const { 1028f655480b48b75e0ec295a2468cf3dd22ccb92dddIliyan Malchev return is_legal_property_name("init.svc." + name); 1029bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1030