service.cpp revision cccb34fce8798f2a359c6eb0e394ef9460673629
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> 27f57c0bfab20b4fae10fc2e385d5e32fc93895670Tom Cherry#include <sys/system_properties.h> 28081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv#include <sys/time.h> 29b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET#include <sys/wait.h> 30bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <termios.h> 31af9ba4dc6ca98e136e887b0baa59b72fb8302dd3Dan Albert#include <unistd.h> 32bac3299720623f4226bca103b26260052732ad30Tom Cherry 334f71319df011d796a60a43fc1bc68e16fbf7d321Elliott Hughes#include <android-base/file.h> 343f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <android-base/logging.h> 35da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes#include <android-base/parseint.h> 36ccf23537eeacfa47e5f18dd3b75089886d177c1bTom Cherry#include <android-base/properties.h> 374f71319df011d796a60a43fc1bc68e16fbf7d321Elliott Hughes#include <android-base/stringprintf.h> 38f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes#include <android-base/strings.h> 39f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner#include <processgroup/processgroup.h> 403f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <selinux/selinux.h> 413f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <system/thread_defs.h> 42f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner 43bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "init.h" 44bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "property_service.h" 45bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "util.h" 46bac3299720623f4226bca103b26260052732ad30Tom Cherry 47e78ea77f6992013b16fd57c07548b53129cdd12fJames Hawkinsusing android::base::boot_clock; 4881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::GetProperty; 4981f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::Join; 50da46b392f10d2809b5696632f67485f272ec5698Elliott Hughesusing android::base::ParseInt; 5181f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::StartsWith; 52b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::StringPrintf; 53b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::WriteStringToFile; 54b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 5581f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherrynamespace android { 5681f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherrynamespace init { 5781f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry 58344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesstatic std::string ComputeContextFromExecutable(std::string& service_name, 59344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes const std::string& service_path) { 60344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::string computed_context; 61344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 62344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_con = nullptr; 63344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_filecon = nullptr; 64344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 65344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getcon(&raw_con) == -1) { 66344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "could not get context while starting '" << service_name << "'"; 67344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 68344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 69344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::unique_ptr<char> mycon(raw_con); 70344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 71344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getfilecon(service_path.c_str(), &raw_filecon) == -1) { 72344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "could not get file context while starting '" << service_name << "'"; 73344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 74344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 75344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::unique_ptr<char> filecon(raw_filecon); 76344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 77344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* new_con = nullptr; 78344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes int rc = security_compute_create(mycon.get(), filecon.get(), 79344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes string_to_security_class("process"), &new_con); 80344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc == 0) { 81344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes computed_context = new_con; 82344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes free(new_con); 83344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 84344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc == 0 && computed_context == mycon.get()) { 85344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "service " << service_name << " does not have a SELinux domain defined"; 86344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 87344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 88344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc < 0) { 89344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "could not get context while starting '" << service_name << "'"; 90344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 91344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 92344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return computed_context; 93344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 94344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 951b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obesstatic void SetUpPidNamespace(const std::string& service_name) { 961b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes constexpr unsigned int kSafeFlags = MS_NODEV | MS_NOEXEC | MS_NOSUID; 971b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 981b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // It's OK to LOG(FATAL) in this function since it's running in the first 991b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // child process. 1001b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (mount("", "/proc", "proc", kSafeFlags | MS_REMOUNT, "") == -1) { 101e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't remount(/proc) for " << service_name; 1021b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1031b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1041b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (prctl(PR_SET_NAME, service_name.c_str()) == -1) { 105e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't set name for " << service_name; 1061b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1071b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1081b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t child_pid = fork(); 1091b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid == -1) { 110e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't fork init inside the PID namespace for " << service_name; 1111b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1121b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1131b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid > 0) { 1141b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // So that we exit with the right status. 1151b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes static int init_exitstatus = 0; 1161b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes signal(SIGTERM, [](int) { _exit(init_exitstatus); }); 1171b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1181b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t waited_pid; 1191b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes int status; 1201b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes while ((waited_pid = wait(&status)) > 0) { 1211b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This loop will end when there are no processes left inside the 1221b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespace or when the init process inside the PID namespace 1231b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // gets a signal. 1241b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (waited_pid == child_pid) { 1251b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes init_exitstatus = status; 1261b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1271b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1281b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (!WIFEXITED(init_exitstatus)) { 1291b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(EXIT_FAILURE); 1301b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1311b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(WEXITSTATUS(init_exitstatus)); 1321b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1331b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 1341b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 135344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesstatic void ExpandArgs(const std::vector<std::string>& args, std::vector<char*>* strs) { 136344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::vector<std::string> expanded_args; 137344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes expanded_args.resize(args.size()); 138344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes strs->push_back(const_cast<char*>(args[0].c_str())); 139344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes for (std::size_t i = 1; i < args.size(); ++i) { 140344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!expand_props(args[i], &expanded_args[i])) { 141344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(FATAL) << args[0] << ": cannot expand '" << args[i] << "'"; 142344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 143344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes strs->push_back(const_cast<char*>(expanded_args[i].c_str())); 144344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 145344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes strs->push_back(nullptr); 146344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 147344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 148bac3299720623f4226bca103b26260052732ad30Tom CherryServiceEnvironmentInfo::ServiceEnvironmentInfo() { 149bac3299720623f4226bca103b26260052732ad30Tom Cherry} 150bac3299720623f4226bca103b26260052732ad30Tom Cherry 151bac3299720623f4226bca103b26260052732ad30Tom CherryServiceEnvironmentInfo::ServiceEnvironmentInfo(const std::string& name, 152bac3299720623f4226bca103b26260052732ad30Tom Cherry const std::string& value) 153bac3299720623f4226bca103b26260052732ad30Tom Cherry : name(name), value(value) { 154bac3299720623f4226bca103b26260052732ad30Tom Cherry} 155bac3299720623f4226bca103b26260052732ad30Tom Cherry 156641ff0a4d8d05349d9c22f726a035a2936a2a94dWei WangService::Service(const std::string& name, const std::vector<std::string>& args) 157641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang : name_(name), 158641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang classnames_({"default"}), 159641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang flags_(0), 160641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang pid_(0), 161641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang crash_count_(0), 162641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang uid_(0), 163641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang gid_(0), 164641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang namespace_flags_(0), 165641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang seclabel_(""), 166012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry onrestart_(false, "<Service '" + name + "' onrestart>", 0), 1677da548578c25683fe0082283303e16961df312daTom Cherry keychord_id_(0), 168641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_class_(IoSchedClass_NONE), 169641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_pri_(0), 170641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang priority_(0), 171641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang oom_score_adjust_(-1000), 172641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang args_(args) { 173bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.InitSingleTrigger("onrestart"); 174bac3299720623f4226bca103b26260052732ad30Tom Cherry} 175bac3299720623f4226bca103b26260052732ad30Tom Cherry 176641ff0a4d8d05349d9c22f726a035a2936a2a94dWei WangService::Service(const std::string& name, unsigned flags, uid_t uid, gid_t gid, 177641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang const std::vector<gid_t>& supp_gids, const CapSet& capabilities, 178641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang unsigned namespace_flags, const std::string& seclabel, 1791b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes const std::vector<std::string>& args) 180641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang : name_(name), 181641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang classnames_({"default"}), 182641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang flags_(flags), 183641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang pid_(0), 184641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang crash_count_(0), 185641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang uid_(uid), 186641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang gid_(gid), 187641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang supp_gids_(supp_gids), 188641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang capabilities_(capabilities), 189641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang namespace_flags_(namespace_flags), 190641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang seclabel_(seclabel), 191012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry onrestart_(false, "<Service '" + name + "' onrestart>", 0), 1927da548578c25683fe0082283303e16961df312daTom Cherry keychord_id_(0), 193641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_class_(IoSchedClass_NONE), 194641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_pri_(0), 195641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang priority_(0), 196641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang oom_score_adjust_(-1000), 197641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang args_(args) { 198bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.InitSingleTrigger("onrestart"); 199bac3299720623f4226bca103b26260052732ad30Tom Cherry} 200bac3299720623f4226bca103b26260052732ad30Tom Cherry 201bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::NotifyStateChange(const std::string& new_state) const { 202b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if ((flags_ & SVC_TEMPORARY) != 0) { 203b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry // Services created by 'exec' are temporary and don't have properties tracking their state. 204bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 205bac3299720623f4226bca103b26260052732ad30Tom Cherry } 206bac3299720623f4226bca103b26260052732ad30Tom Cherry 2071c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string prop_name = "init.svc." + name_; 2081c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry property_set(prop_name, new_state); 2099605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes 2109605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (new_state == "running") { 2119605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes uint64_t start_ns = time_started_.time_since_epoch().count(); 2121c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry property_set("ro.boottime." + name_, std::to_string(start_ns)); 2139605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes } 214bac3299720623f4226bca103b26260052732ad30Tom Cherry} 215bac3299720623f4226bca103b26260052732ad30Tom Cherry 216ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughesvoid Service::KillProcessGroup(int signal) { 21733838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // If we've already seen a successful result from killProcessGroup*(), then we have removed 21833838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // the cgroup already and calling these functions a second time will simply result in an error. 21933838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // This is true regardless of which signal was sent. 22033838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // These functions handle their own logging, so no additional logging is needed. 22133838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (!process_cgroup_empty_) { 22233838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry LOG(INFO) << "Sending signal " << signal << " to service '" << name_ << "' (pid " << pid_ 22333838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry << ") process group..."; 22433838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry int r; 22533838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (signal == SIGTERM) { 22633838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry r = killProcessGroupOnce(uid_, pid_, signal); 22733838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } else { 22833838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry r = killProcessGroup(uid_, pid_, signal); 22933838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } 23033838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry 23133838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (r == 0) process_cgroup_empty_ = true; 23233838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } 233ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes} 234ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 235344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesvoid Service::SetProcessAttributes() { 23624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes // Keep capabilites on uid change. 23724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any() && uid_) { 238f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez // If Android is running in a container, some securebits might already 239f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez // be locked, so don't change those. 240f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez int64_t securebits = prctl(PR_GET_SECUREBITS); 241f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez if (securebits == -1) { 242f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez PLOG(FATAL) << "prctl(PR_GET_SECUREBITS) failed for " << name_; 243f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez } 244f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez securebits |= SECBIT_KEEP_CAPS | SECBIT_KEEP_CAPS_LOCKED; 245f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez if (prctl(PR_SET_SECUREBITS, securebits) != 0) { 246f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez PLOG(FATAL) << "prctl(PR_SET_SECUREBITS) failed for " << name_; 24724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 24824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 24924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 250e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes // TODO: work out why this fails for `console` then upgrade to FATAL. 251e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes if (setpgid(0, getpid()) == -1) PLOG(ERROR) << "setpgid failed for " << name_; 252344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 253344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (gid_) { 254344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setgid(gid_) != 0) { 255e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setgid failed for " << name_; 256344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 257344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 25880960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich if (setgroups(supp_gids_.size(), &supp_gids_[0]) != 0) { 25980960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich PLOG(FATAL) << "setgroups failed for " << name_; 260344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 261344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (uid_) { 262344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setuid(uid_) != 0) { 263e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setuid failed for " << name_; 264344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 265344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 266344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!seclabel_.empty()) { 267344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setexeccon(seclabel_.c_str()) < 0) { 268e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "cannot setexeccon('" << seclabel_ << "') for " << name_; 269344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 270344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 271344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (priority_ != 0) { 272344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setpriority(PRIO_PROCESS, 0, priority_) != 0) { 273e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setpriority failed for " << name_; 274344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 275344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 27624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any()) { 27724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (!SetCapsForExec(capabilities_)) { 27824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes LOG(FATAL) << "cannot set capabilities for " << name_; 27924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 28024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 281344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 282344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 283b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherryvoid Service::Reap() { 284bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_ONESHOT) || (flags_ & SVC_RESTART)) { 285ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 286bac3299720623f4226bca103b26260052732ad30Tom Cherry } 287bac3299720623f4226bca103b26260052732ad30Tom Cherry 28862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn // Remove any descriptor resources we may have created. 28962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 29062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::Clean, std::placeholders::_1)); 291bac3299720623f4226bca103b26260052732ad30Tom Cherry 292b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if (flags_ & SVC_TEMPORARY) { 293b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return; 294bac3299720623f4226bca103b26260052732ad30Tom Cherry } 295bac3299720623f4226bca103b26260052732ad30Tom Cherry 296bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 297bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RUNNING); 298bac3299720623f4226bca103b26260052732ad30Tom Cherry 299bac3299720623f4226bca103b26260052732ad30Tom Cherry // Oneshot processes go into the disabled state on exit, 300bac3299720623f4226bca103b26260052732ad30Tom Cherry // except when manually restarted. 301bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_ONESHOT) && !(flags_ & SVC_RESTART)) { 302bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 303bac3299720623f4226bca103b26260052732ad30Tom Cherry } 304bac3299720623f4226bca103b26260052732ad30Tom Cherry 305bac3299720623f4226bca103b26260052732ad30Tom Cherry // Disabled and reset processes do not get restarted automatically. 306bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & (SVC_DISABLED | SVC_RESET)) { 307bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 308b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return; 309bac3299720623f4226bca103b26260052732ad30Tom Cherry } 310bac3299720623f4226bca103b26260052732ad30Tom Cherry 3119605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes // If we crash > 4 times in 4 minutes, reboot into recovery. 3129605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes boot_clock::time_point now = boot_clock::now(); 313bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_CRITICAL) && !(flags_ & SVC_RESTART)) { 3149605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (now < time_crashed_ + 4min) { 3159605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (++crash_count_ > 4) { 316331cf2fb7c16b5b25064f8d2f00284105a9b413fElliott Hughes LOG(ERROR) << "critical process '" << name_ << "' exited 4 times in 4 minutes"; 317331cf2fb7c16b5b25064f8d2f00284105a9b413fElliott Hughes panic(); 318bac3299720623f4226bca103b26260052732ad30Tom Cherry } 319bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 320bac3299720623f4226bca103b26260052732ad30Tom Cherry time_crashed_ = now; 3219605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes crash_count_ = 1; 322bac3299720623f4226bca103b26260052732ad30Tom Cherry } 323bac3299720623f4226bca103b26260052732ad30Tom Cherry } 324bac3299720623f4226bca103b26260052732ad30Tom Cherry 325bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RESTART); 326bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RESTARTING; 327bac3299720623f4226bca103b26260052732ad30Tom Cherry 328bac3299720623f4226bca103b26260052732ad30Tom Cherry // Execute all onrestart commands for this service. 329bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.ExecuteAllCommands(); 330bac3299720623f4226bca103b26260052732ad30Tom Cherry 331bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("restarting"); 332b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return; 333bac3299720623f4226bca103b26260052732ad30Tom Cherry} 334bac3299720623f4226bca103b26260052732ad30Tom Cherry 335bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::DumpState() const { 336f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << "service " << name_; 33781f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry LOG(INFO) << " class '" << Join(classnames_, " ") << "'"; 33881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry LOG(INFO) << " exec " << Join(args_, " "); 33962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 34062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [] (const auto& info) { LOG(INFO) << *info; }); 341bac3299720623f4226bca103b26260052732ad30Tom Cherry} 342bac3299720623f4226bca103b26260052732ad30Tom Cherry 34324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obesbool Service::ParseCapabilities(const std::vector<std::string>& args, std::string* err) { 34424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_ = 0; 34524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 346f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (!CapAmbientSupported()) { 347f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes *err = "capabilities requested but the kernel does not support ambient capabilities"; 348f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes return false; 349f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 350f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes 351f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes unsigned int last_valid_cap = GetLastValidCap(); 352f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (last_valid_cap >= capabilities_.size()) { 353f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes LOG(WARNING) << "last valid run-time capability is larger than CAP_LAST_CAP"; 354f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 355f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes 35624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 35724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const std::string& arg = args[i]; 358f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes int res = LookupCap(arg); 359f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (res < 0) { 36024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes *err = StringPrintf("invalid capability '%s'", arg.c_str()); 36124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes return false; 36224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 363f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes unsigned int cap = static_cast<unsigned int>(res); // |res| is >= 0. 364f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (cap > last_valid_cap) { 365f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes *err = StringPrintf("capability '%s' not supported by the kernel", arg.c_str()); 366f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes return false; 367f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 36824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_[cap] = true; 36924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 37024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes return true; 37124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes} 37224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 373177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseClass(const std::vector<std::string>& args, std::string* err) { 374641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang classnames_ = std::set<std::string>(args.begin() + 1, args.end()); 375b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 376b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 377bac3299720623f4226bca103b26260052732ad30Tom Cherry 378177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseConsole(const std::vector<std::string>& args, std::string* err) { 379b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CONSOLE; 38070daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = args.size() > 1 ? "/dev/" + args[1] : ""; 381b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 382b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 383bac3299720623f4226bca103b26260052732ad30Tom Cherry 384177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseCritical(const std::vector<std::string>& args, std::string* err) { 385b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CRITICAL; 386b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 387b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 388bac3299720623f4226bca103b26260052732ad30Tom Cherry 389177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseDisabled(const std::vector<std::string>& args, std::string* err) { 390b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_DISABLED; 391b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_RC_DISABLED; 392b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 393b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 394bac3299720623f4226bca103b26260052732ad30Tom Cherry 395177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseGroup(const std::vector<std::string>& args, std::string* err) { 396517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry std::string decode_uid_err; 397517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (!DecodeUid(args[1], &gid_, &decode_uid_err)) { 398517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry *err = "Unable to find GID for '" + args[1] + "': " + decode_uid_err; 399517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 400517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 401b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t n = 2; n < args.size(); n++) { 402517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry gid_t gid; 403517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (!DecodeUid(args[n], &gid, &decode_uid_err)) { 404517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry *err = "Unable to find GID for '" + args[n] + "': " + decode_uid_err; 405517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 406517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 407517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry supp_gids_.emplace_back(gid); 408b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 409b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 410b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 411bac3299720623f4226bca103b26260052732ad30Tom Cherry 412177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParsePriority(const std::vector<std::string>& args, std::string* err) { 413da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes priority_ = 0; 414da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &priority_, 415dd34ca45ea80c519a579578562e73d5e7f86703bKeun-young Park static_cast<int>(ANDROID_PRIORITY_HIGHEST), // highest is negative 416dd34ca45ea80c519a579578562e73d5e7f86703bKeun-young Park static_cast<int>(ANDROID_PRIORITY_LOWEST))) { 417081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv *err = StringPrintf("process priority value must be range %d - %d", 418081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv ANDROID_PRIORITY_HIGHEST, ANDROID_PRIORITY_LOWEST); 419081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv return false; 420081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv } 421081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv return true; 422081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv} 423081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv 424177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseIoprio(const std::vector<std::string>& args, std::string* err) { 425da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[2], &ioprio_pri_, 0, 7)) { 426b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "priority value must be range 0 - 7"; 427b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 428b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 429b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 430b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args[1] == "rt") { 431b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_RT; 432b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "be") { 433b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_BE; 434b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "idle") { 435b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_IDLE; 436b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else { 437b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "ioprio option usage: ioprio <rt|be|idle> <0-7>"; 438b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 439bac3299720623f4226bca103b26260052732ad30Tom Cherry } 440bac3299720623f4226bca103b26260052732ad30Tom Cherry 441b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 442b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 443bac3299720623f4226bca103b26260052732ad30Tom Cherry 444177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseKeycodes(const std::vector<std::string>& args, std::string* err) { 445b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t i = 1; i < args.size(); i++) { 446da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes int code; 447da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (ParseInt(args[i], &code)) { 448da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes keycodes_.emplace_back(code); 449da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } else { 450da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes LOG(WARNING) << "ignoring invalid keycode: " << args[i]; 451da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } 452bac3299720623f4226bca103b26260052732ad30Tom Cherry } 453b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 454b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 455b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 456177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseOneshot(const std::vector<std::string>& args, std::string* err) { 457b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_ONESHOT; 458b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 459b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 460b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 461177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseOnrestart(const std::vector<std::string>& args, std::string* err) { 462b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 1, args.end()); 463012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry int line = onrestart_.NumCommands() + 1; 464012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry onrestart_.AddCommand(str_args, line, err); 465b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 466b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 467bac3299720623f4226bca103b26260052732ad30Tom Cherry 468177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseNamespace(const std::vector<std::string>& args, std::string* err) { 4691b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 4701b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (args[i] == "pid") { 4711b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWPID; 4721b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespaces require mount namespaces. 4731b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 4741b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else if (args[i] == "mnt") { 4751b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 4761b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 4771b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes *err = "namespace must be 'pid' or 'mnt'"; 4781b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes return false; 4791b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 4801b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 4811b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes return true; 4821b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 4831b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 484310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissenbool Service::ParseOomScoreAdjust(const std::vector<std::string>& args, std::string* err) { 485da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &oom_score_adjust_, -1000, 1000)) { 486310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen *err = "oom_score_adjust value must be in range -1000 - +1000"; 487310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen return false; 488310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 489310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen return true; 490310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen} 491310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 492177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSeclabel(const std::vector<std::string>& args, std::string* err) { 493b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry seclabel_ = args[1]; 494b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 495b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 496b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 497177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSetenv(const std::vector<std::string>& args, std::string* err) { 498b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry envvars_.emplace_back(args[1], args[2]); 499b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 500b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 501b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 502cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Parkbool Service::ParseShutdown(const std::vector<std::string>& args, std::string* err) { 503cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park if (args[1] == "critical") { 504cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park flags_ |= SVC_SHUTDOWN_CRITICAL; 505cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park return true; 506cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park } 507cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park return false; 508cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park} 509cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park 51062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyntemplate <typename T> 51162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzynbool Service::AddDescriptor(const std::vector<std::string>& args, std::string* err) { 51262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn int perm = args.size() > 3 ? std::strtoul(args[3].c_str(), 0, 8) : -1; 513517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry uid_t uid = 0; 514517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry gid_t gid = 0; 51562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::string context = args.size() > 6 ? args[6] : ""; 51662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 517517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry std::string decode_uid_err; 518517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (args.size() > 4) { 519517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (!DecodeUid(args[4], &uid, &decode_uid_err)) { 520517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry *err = "Unable to find UID for '" + args[4] + "': " + decode_uid_err; 521517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 522517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 523517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 524517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry 525517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (args.size() > 5) { 526517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (!DecodeUid(args[5], &gid, &decode_uid_err)) { 527517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry *err = "Unable to find GID for '" + args[5] + "': " + decode_uid_err; 528517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 529517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 530517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 531517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry 53262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn auto descriptor = std::make_unique<T>(args[1], args[2], uid, gid, perm, context); 53362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 53462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn auto old = 53562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::find_if(descriptors_.begin(), descriptors_.end(), 53662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [&descriptor] (const auto& other) { return descriptor.get() == other.get(); }); 53762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 53862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (old != descriptors_.end()) { 53962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn *err = "duplicate descriptor " + args[1] + " " + args[2]; 54062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return false; 54162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 54262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 54362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn descriptors_.emplace_back(std::move(descriptor)); 54462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return true; 54562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 54662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 54762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 548177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSocket(const std::vector<std::string>& args, std::string* err) { 54981f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry if (!StartsWith(args[2], "dgram") && !StartsWith(args[2], "stream") && 55081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry !StartsWith(args[2], "seqpacket")) { 551b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "socket type must be 'dgram', 'stream' or 'seqpacket'"; 552bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 553bac3299720623f4226bca103b26260052732ad30Tom Cherry } 55462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return AddDescriptor<SocketInfo>(args, err); 55562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 556b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 55762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 55862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzynbool Service::ParseFile(const std::vector<std::string>& args, std::string* err) { 55962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (args[2] != "r" && args[2] != "w" && args[2] != "rw") { 56062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn *err = "file type must be 'r', 'w' or 'rw'"; 56162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return false; 56262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 56362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if ((args[1][0] != '/') || (args[1].find("../") != std::string::npos)) { 56462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn *err = "file name must not be relative"; 56562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return false; 56662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 56762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return AddDescriptor<FileInfo>(args, err); 568bac3299720623f4226bca103b26260052732ad30Tom Cherry} 569bac3299720623f4226bca103b26260052732ad30Tom Cherry 570177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseUser(const std::vector<std::string>& args, std::string* err) { 571517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry std::string decode_uid_err; 572517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (!DecodeUid(args[1], &uid_, &decode_uid_err)) { 573517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry *err = "Unable to find UID for '" + args[1] + "': " + decode_uid_err; 574517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 575517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 576b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 577b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 578b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 579177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseWritepid(const std::vector<std::string>& args, std::string* err) { 580b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry writepid_files_.assign(args.begin() + 1, args.end()); 581b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 582b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 583b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 584177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesclass Service::OptionParserMap : public KeywordMap<OptionParser> { 585ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry public: 586ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry OptionParserMap() {} 587ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry 588ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry private: 589ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry const Map& map() const override; 590b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry}; 591b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 592ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherryconst Service::OptionParserMap::Map& Service::OptionParserMap::map() const { 593b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry constexpr std::size_t kMax = std::numeric_limits<std::size_t>::max(); 594641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang // clang-format off 595177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const Map option_parsers = { 59624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {"capabilities", 59724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {1, kMax, &Service::ParseCapabilities}}, 598641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang {"class", {1, kMax, &Service::ParseClass}}, 599177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"console", {0, 1, &Service::ParseConsole}}, 600177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"critical", {0, 0, &Service::ParseCritical}}, 601177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"disabled", {0, 0, &Service::ParseDisabled}}, 602177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"group", {1, NR_SVC_SUPP_GIDS + 1, &Service::ParseGroup}}, 603177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"ioprio", {2, 2, &Service::ParseIoprio}}, 604177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"priority", {1, 1, &Service::ParsePriority}}, 605177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"keycodes", {1, kMax, &Service::ParseKeycodes}}, 606177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"oneshot", {0, 0, &Service::ParseOneshot}}, 607177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"onrestart", {1, kMax, &Service::ParseOnrestart}}, 608310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {"oom_score_adjust", 609310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {1, 1, &Service::ParseOomScoreAdjust}}, 610177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"namespace", {1, 2, &Service::ParseNamespace}}, 611177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"seclabel", {1, 1, &Service::ParseSeclabel}}, 612177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"setenv", {2, 2, &Service::ParseSetenv}}, 613cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park {"shutdown", {1, 1, &Service::ParseShutdown}}, 614177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"socket", {3, 6, &Service::ParseSocket}}, 615978fd0ea254f11f84e38b41a74bbe70c81edc197Mark Salyzyn {"file", {2, 2, &Service::ParseFile}}, 616177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"user", {1, 1, &Service::ParseUser}}, 617177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"writepid", {1, kMax, &Service::ParseWritepid}}, 618b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry }; 619641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang // clang-format on 620177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return option_parsers; 621b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 622b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 623177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseLine(const std::vector<std::string>& args, std::string* err) { 624177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const OptionParserMap parser_map; 625fe062055cb11fcb1a6178b046173fc0361ad5b96Tom Cherry auto parser = parser_map.FindFunction(args, err); 626b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 627177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes if (!parser) { 628b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 629b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 630b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 631177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return (this->*parser)(args, err); 632b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 633b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 634b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherrybool Service::ExecStart(std::unique_ptr<Timer>* exec_waiter) { 635b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry flags_ |= SVC_EXEC | SVC_ONESHOT; 636b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 637b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry exec_waiter->reset(new Timer); 638b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 639b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if (!Start()) { 640b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry exec_waiter->reset(); 641b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return false; 642b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry } 643b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return true; 644b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry} 645b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 646bdeac39a42c1b9c7195ada1c30fe12f94314490fElliott Hughesbool Service::Start() { 647bac3299720623f4226bca103b26260052732ad30Tom Cherry // Starting a service removes it from the disabled or reset state and 648bac3299720623f4226bca103b26260052732ad30Tom Cherry // immediately takes it out of the restarting state if it was in there. 649bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~(SVC_DISABLED|SVC_RESTARTING|SVC_RESET|SVC_RESTART|SVC_DISABLED_START)); 650bac3299720623f4226bca103b26260052732ad30Tom Cherry 651bac3299720623f4226bca103b26260052732ad30Tom Cherry // Running processes require no additional work --- if they're in the 652bac3299720623f4226bca103b26260052732ad30Tom Cherry // process of exiting, we've ensured that they will immediately restart 653bac3299720623f4226bca103b26260052732ad30Tom Cherry // on exit, unless they are ONESHOT. 654bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 655bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 656bac3299720623f4226bca103b26260052732ad30Tom Cherry } 657bac3299720623f4226bca103b26260052732ad30Tom Cherry 658bac3299720623f4226bca103b26260052732ad30Tom Cherry bool needs_console = (flags_ & SVC_CONSOLE); 65970daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (needs_console) { 66070daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (console_.empty()) { 66170daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = default_console; 66270daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 66370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman 66424ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido // Make sure that open call succeeds to ensure a console driver is 66524ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido // properly registered for the device node 66624ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido int console_fd = open(console_.c_str(), O_RDWR | O_CLOEXEC); 66724ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido if (console_fd < 0) { 66824ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido PLOG(ERROR) << "service '" << name_ << "' couldn't open console '" << console_ << "'"; 66970daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman flags_ |= SVC_DISABLED; 67070daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman return false; 67170daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 67224ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido close(console_fd); 673bac3299720623f4226bca103b26260052732ad30Tom Cherry } 674bac3299720623f4226bca103b26260052732ad30Tom Cherry 675bac3299720623f4226bca103b26260052732ad30Tom Cherry struct stat sb; 676bac3299720623f4226bca103b26260052732ad30Tom Cherry if (stat(args_[0].c_str(), &sb) == -1) { 677f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "cannot find '" << args_[0] << "', disabling '" << name_ << "'"; 678bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 679bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 680bac3299720623f4226bca103b26260052732ad30Tom Cherry } 681bac3299720623f4226bca103b26260052732ad30Tom Cherry 682bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string scon; 683bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!seclabel_.empty()) { 684bac3299720623f4226bca103b26260052732ad30Tom Cherry scon = seclabel_; 685bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 686344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes scon = ComputeContextFromExecutable(name_, args_[0]); 687344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (scon == "") { 688bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 689bac3299720623f4226bca103b26260052732ad30Tom Cherry } 690bac3299720623f4226bca103b26260052732ad30Tom Cherry } 691bac3299720623f4226bca103b26260052732ad30Tom Cherry 692a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << "starting service '" << name_ << "'..."; 693bac3299720623f4226bca103b26260052732ad30Tom Cherry 6941b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t pid = -1; 6951b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_) { 696344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes pid = clone(nullptr, nullptr, namespace_flags_ | SIGCHLD, nullptr); 6971b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 6981b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid = fork(); 6991b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 7001b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 701bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid == 0) { 702bac3299720623f4226bca103b26260052732ad30Tom Cherry umask(077); 703bac3299720623f4226bca103b26260052732ad30Tom Cherry 7041b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_ & CLONE_NEWPID) { 7051b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This will fork again to run an init process inside the PID 7061b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // namespace. 7071b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes SetUpPidNamespace(name_); 7081b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 7091b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 710bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& ei : envvars_) { 711bac3299720623f4226bca103b26260052732ad30Tom Cherry add_environment(ei.name.c_str(), ei.value.c_str()); 712bac3299720623f4226bca103b26260052732ad30Tom Cherry } 713bac3299720623f4226bca103b26260052732ad30Tom Cherry 71462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 71562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::CreateAndPublish, std::placeholders::_1, scon)); 716bac3299720623f4226bca103b26260052732ad30Tom Cherry 7170828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // See if there were "writepid" instructions to write to files under /dev/cpuset/. 7180828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko auto cpuset_predicate = [](const std::string& path) { 71981f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry return StartsWith(path, "/dev/cpuset/"); 7200828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko }; 7210828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko auto iter = std::find_if(writepid_files_.begin(), writepid_files_.end(), cpuset_predicate); 7220828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (iter == writepid_files_.end()) { 7230828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // There were no "writepid" instructions for cpusets, check if the system default 7240828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // cpuset is specified to be used for the process. 72581f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry std::string default_cpuset = GetProperty("ro.cpuset.default", ""); 7260828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (!default_cpuset.empty()) { 7270828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // Make sure the cpuset name starts and ends with '/'. 7280828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // A single '/' means the 'root' cpuset. 7290828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (default_cpuset.front() != '/') { 7300828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko default_cpuset.insert(0, 1, '/'); 7310828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 7320828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (default_cpuset.back() != '/') { 7330828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko default_cpuset.push_back('/'); 7340828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 7350828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko writepid_files_.push_back( 7360828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko StringPrintf("/dev/cpuset%stasks", default_cpuset.c_str())); 7370828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 7380828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 7391c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string pid_str = std::to_string(getpid()); 740bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& file : writepid_files_) { 741b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!WriteStringToFile(pid_str, file)) { 742f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "couldn't write " << pid_str << " to " << file; 743bac3299720623f4226bca103b26260052732ad30Tom Cherry } 744bac3299720623f4226bca103b26260052732ad30Tom Cherry } 745bac3299720623f4226bca103b26260052732ad30Tom Cherry 746bac3299720623f4226bca103b26260052732ad30Tom Cherry if (ioprio_class_ != IoSchedClass_NONE) { 747bac3299720623f4226bca103b26260052732ad30Tom Cherry if (android_set_ioprio(getpid(), ioprio_class_, ioprio_pri_)) { 748344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "failed to set pid " << getpid() 749f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << " ioprio=" << ioprio_class_ << "," << ioprio_pri_; 750bac3299720623f4226bca103b26260052732ad30Tom Cherry } 751bac3299720623f4226bca103b26260052732ad30Tom Cherry } 752bac3299720623f4226bca103b26260052732ad30Tom Cherry 753bac3299720623f4226bca103b26260052732ad30Tom Cherry if (needs_console) { 754bac3299720623f4226bca103b26260052732ad30Tom Cherry setsid(); 755bac3299720623f4226bca103b26260052732ad30Tom Cherry OpenConsole(); 756bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 757bac3299720623f4226bca103b26260052732ad30Tom Cherry ZapStdio(); 758bac3299720623f4226bca103b26260052732ad30Tom Cherry } 759bac3299720623f4226bca103b26260052732ad30Tom Cherry 760344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // As requested, set our gid, supplemental gids, uid, context, and 761344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // priority. Aborts on failure. 762344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes SetProcessAttributes(); 763bac3299720623f4226bca103b26260052732ad30Tom Cherry 764bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<char*> strs; 765344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes ExpandArgs(args_, &strs); 766bac3536cc949b3af0185e7b8f9b18318b37ac8b0Tom Cherry if (execve(strs[0], (char**) &strs[0], (char**) ENV) < 0) { 767f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "cannot execve('" << strs[0] << "')"; 768bac3299720623f4226bca103b26260052732ad30Tom Cherry } 769bac3299720623f4226bca103b26260052732ad30Tom Cherry 770bac3299720623f4226bca103b26260052732ad30Tom Cherry _exit(127); 771bac3299720623f4226bca103b26260052732ad30Tom Cherry } 772bac3299720623f4226bca103b26260052732ad30Tom Cherry 773bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid < 0) { 774f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "failed to fork for '" << name_ << "'"; 775bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 776bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 777bac3299720623f4226bca103b26260052732ad30Tom Cherry } 778bac3299720623f4226bca103b26260052732ad30Tom Cherry 779310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (oom_score_adjust_ != -1000) { 7801c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string oom_str = std::to_string(oom_score_adjust_); 781310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen std::string oom_file = StringPrintf("/proc/%d/oom_score_adj", pid); 782310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (!WriteStringToFile(oom_str, oom_file)) { 783310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen PLOG(ERROR) << "couldn't write oom_score_adj: " << strerror(errno); 784310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 785310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 786310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 7879605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes time_started_ = boot_clock::now(); 788bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = pid; 789bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RUNNING; 79033838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry process_cgroup_empty_ = false; 791ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 792ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes errno = -createProcessGroup(uid_, pid_); 793ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes if (errno != 0) { 794344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "createProcessGroup(" << uid_ << ", " << pid_ << ") failed for service '" 795344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes << name_ << "'"; 796ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes } 797bac3299720623f4226bca103b26260052732ad30Tom Cherry 798bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_EXEC) != 0) { 7991c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry LOG(INFO) << "SVC_EXEC pid " << pid_ << " (uid " << uid_ << " gid " << gid_ << "+" 8001c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry << supp_gids_.size() << " context " 8011c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry << (!seclabel_.empty() ? seclabel_ : "default") << ") started; waiting..."; 802bac3299720623f4226bca103b26260052732ad30Tom Cherry } 803bac3299720623f4226bca103b26260052732ad30Tom Cherry 804bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("running"); 805bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 806bac3299720623f4226bca103b26260052732ad30Tom Cherry} 807bac3299720623f4226bca103b26260052732ad30Tom Cherry 808bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::StartIfNotDisabled() { 809bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_DISABLED)) { 810bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 811bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 812bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED_START; 813bac3299720623f4226bca103b26260052732ad30Tom Cherry } 814bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 815bac3299720623f4226bca103b26260052732ad30Tom Cherry} 816bac3299720623f4226bca103b26260052732ad30Tom Cherry 817bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::Enable() { 818bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_DISABLED | SVC_RC_DISABLED); 819bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_DISABLED_START) { 820bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 821bac3299720623f4226bca103b26260052732ad30Tom Cherry } 822bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 823bac3299720623f4226bca103b26260052732ad30Tom Cherry} 824bac3299720623f4226bca103b26260052732ad30Tom Cherry 825bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Reset() { 826bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESET); 827bac3299720623f4226bca103b26260052732ad30Tom Cherry} 828bac3299720623f4226bca103b26260052732ad30Tom Cherry 829bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Stop() { 830bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_DISABLED); 831bac3299720623f4226bca103b26260052732ad30Tom Cherry} 832bac3299720623f4226bca103b26260052732ad30Tom Cherry 833b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETvoid Service::Terminate() { 834b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 835b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ |= SVC_DISABLED; 836b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (pid_) { 837ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGTERM); 838b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET NotifyStateChange("stopping"); 839b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 840b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 841b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 842bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Restart() { 843bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 844bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Stop, wait, then start the service. */ 845bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESTART); 846bac3299720623f4226bca103b26260052732ad30Tom Cherry } else if (!(flags_ & SVC_RESTARTING)) { 847bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Just start the service since it's not running. */ 848bac3299720623f4226bca103b26260052732ad30Tom Cherry Start(); 849bac3299720623f4226bca103b26260052732ad30Tom Cherry } /* else: Service is restarting anyways. */ 850bac3299720623f4226bca103b26260052732ad30Tom Cherry} 851bac3299720623f4226bca103b26260052732ad30Tom Cherry 8529605a945f7a497c0307b512b9cd762f2d23973caElliott Hughesvoid Service::RestartIfNeeded(time_t* process_needs_restart_at) { 8539605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes boot_clock::time_point now = boot_clock::now(); 8549605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes boot_clock::time_point next_start = time_started_ + 5s; 8559605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (now > next_start) { 856bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RESTARTING); 857bac3299720623f4226bca103b26260052732ad30Tom Cherry Start(); 858bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 859bac3299720623f4226bca103b26260052732ad30Tom Cherry } 860bac3299720623f4226bca103b26260052732ad30Tom Cherry 8619605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes time_t next_start_time_t = time(nullptr) + 8629605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes time_t(std::chrono::duration_cast<std::chrono::seconds>(next_start - now).count()); 8639605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (next_start_time_t < *process_needs_restart_at || *process_needs_restart_at == 0) { 8649605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes *process_needs_restart_at = next_start_time_t; 865bac3299720623f4226bca103b26260052732ad30Tom Cherry } 866bac3299720623f4226bca103b26260052732ad30Tom Cherry} 867bac3299720623f4226bca103b26260052732ad30Tom Cherry 868ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes// The how field should be either SVC_DISABLED, SVC_RESET, or SVC_RESTART. 869bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::StopOrReset(int how) { 870ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // The service is still SVC_RUNNING until its process exits, but if it has 871ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // already exited it shoudn't attempt a restart yet. 872bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 873bac3299720623f4226bca103b26260052732ad30Tom Cherry 874bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((how != SVC_DISABLED) && (how != SVC_RESET) && (how != SVC_RESTART)) { 875ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // An illegal flag: default to SVC_DISABLED. 876bac3299720623f4226bca103b26260052732ad30Tom Cherry how = SVC_DISABLED; 877bac3299720623f4226bca103b26260052732ad30Tom Cherry } 878ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 879ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // If the service has not yet started, prevent it from auto-starting with its class. 880bac3299720623f4226bca103b26260052732ad30Tom Cherry if (how == SVC_RESET) { 881bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= (flags_ & SVC_RC_DISABLED) ? SVC_DISABLED : SVC_RESET; 882bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 883bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= how; 884bac3299720623f4226bca103b26260052732ad30Tom Cherry } 885bac3299720623f4226bca103b26260052732ad30Tom Cherry 886bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid_) { 887ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 888bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopping"); 889bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 890bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 891bac3299720623f4226bca103b26260052732ad30Tom Cherry } 892bac3299720623f4226bca103b26260052732ad30Tom Cherry} 893bac3299720623f4226bca103b26260052732ad30Tom Cherry 894bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::ZapStdio() const { 895bac3299720623f4226bca103b26260052732ad30Tom Cherry int fd; 896bac3299720623f4226bca103b26260052732ad30Tom Cherry fd = open("/dev/null", O_RDWR); 897bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 898bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 899bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 900bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 901bac3299720623f4226bca103b26260052732ad30Tom Cherry} 902bac3299720623f4226bca103b26260052732ad30Tom Cherry 903bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::OpenConsole() const { 90470daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman int fd = open(console_.c_str(), O_RDWR); 90570daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (fd == -1) fd = open("/dev/null", O_RDWR); 906bac3299720623f4226bca103b26260052732ad30Tom Cherry ioctl(fd, TIOCSCTTY, 0); 907bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 908bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 909bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 910bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 911bac3299720623f4226bca103b26260052732ad30Tom Cherry} 912bac3299720623f4226bca103b26260052732ad30Tom Cherry 913bac3299720623f4226bca103b26260052732ad30Tom Cherryint ServiceManager::exec_count_ = 0; 914bac3299720623f4226bca103b26260052732ad30Tom Cherry 915bac3299720623f4226bca103b26260052732ad30Tom CherryServiceManager::ServiceManager() { 916bac3299720623f4226bca103b26260052732ad30Tom Cherry} 917bac3299720623f4226bca103b26260052732ad30Tom Cherry 918bac3299720623f4226bca103b26260052732ad30Tom CherryServiceManager& ServiceManager::GetInstance() { 919bac3299720623f4226bca103b26260052732ad30Tom Cherry static ServiceManager instance; 920bac3299720623f4226bca103b26260052732ad30Tom Cherry return instance; 921bac3299720623f4226bca103b26260052732ad30Tom Cherry} 922bac3299720623f4226bca103b26260052732ad30Tom Cherry 923b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceManager::AddService(std::unique_ptr<Service> service) { 924b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry services_.emplace_back(std::move(service)); 925bac3299720623f4226bca103b26260052732ad30Tom Cherry} 926bac3299720623f4226bca103b26260052732ad30Tom Cherry 927b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherrybool ServiceManager::Exec(const std::vector<std::string>& args) { 928b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry Service* svc = MakeExecOneshotService(args); 929b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if (!svc) { 930b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry LOG(ERROR) << "Could not create exec service"; 931b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return false; 932b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry } 933b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if (!svc->ExecStart(&exec_waiter_)) { 934b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry LOG(ERROR) << "Could not start exec service"; 935b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry ServiceManager::GetInstance().RemoveService(*svc); 936b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return false; 937b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry } 938b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return true; 939b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry} 940b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 941b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherrybool ServiceManager::ExecStart(const std::string& name) { 942b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry Service* svc = FindServiceByName(name); 943b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if (!svc) { 944b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry LOG(ERROR) << "ExecStart(" << name << "): Service not found"; 945b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return false; 946b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry } 947b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if (!svc->ExecStart(&exec_waiter_)) { 948b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry LOG(ERROR) << "ExecStart(" << name << "): Could not start Service"; 949b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return false; 950b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry } 951b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return true; 952b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry} 953b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 954b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherrybool ServiceManager::IsWaitingForExec() const { return exec_waiter_ != nullptr; } 955b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 956bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::MakeExecOneshotService(const std::vector<std::string>& args) { 957bac3299720623f4226bca103b26260052732ad30Tom Cherry // Parse the arguments: exec [SECLABEL [UID [GID]*] --] COMMAND ARGS... 958bac3299720623f4226bca103b26260052732ad30Tom Cherry // SECLABEL can be a - to denote default 959bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t command_arg = 1; 960bac3299720623f4226bca103b26260052732ad30Tom Cherry for (std::size_t i = 1; i < args.size(); ++i) { 961bac3299720623f4226bca103b26260052732ad30Tom Cherry if (args[i] == "--") { 962bac3299720623f4226bca103b26260052732ad30Tom Cherry command_arg = i + 1; 963bac3299720623f4226bca103b26260052732ad30Tom Cherry break; 964bac3299720623f4226bca103b26260052732ad30Tom Cherry } 965bac3299720623f4226bca103b26260052732ad30Tom Cherry } 966bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4 + NR_SVC_SUPP_GIDS) { 967f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called with too many supplementary group ids"; 968bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 969bac3299720623f4226bca103b26260052732ad30Tom Cherry } 970bac3299720623f4226bca103b26260052732ad30Tom Cherry 971bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg >= args.size()) { 972f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called without command"; 973bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 974bac3299720623f4226bca103b26260052732ad30Tom Cherry } 975bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<std::string> str_args(args.begin() + command_arg, args.end()); 976bac3299720623f4226bca103b26260052732ad30Tom Cherry 977bac3299720623f4226bca103b26260052732ad30Tom Cherry exec_count_++; 97881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry std::string name = "exec " + std::to_string(exec_count_) + " (" + Join(str_args, " ") + ")"; 97986e31a81238fb30d113947e7689a38daf49097f3Tom Cherry 980b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry unsigned flags = SVC_EXEC | SVC_ONESHOT | SVC_TEMPORARY; 98124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes CapSet no_capabilities; 9821b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes unsigned namespace_flags = 0; 983bac3299720623f4226bca103b26260052732ad30Tom Cherry 984bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string seclabel = ""; 985bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 2 && args[1] != "-") { 986bac3299720623f4226bca103b26260052732ad30Tom Cherry seclabel = args[1]; 987bac3299720623f4226bca103b26260052732ad30Tom Cherry } 988bac3299720623f4226bca103b26260052732ad30Tom Cherry uid_t uid = 0; 989bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 3) { 990517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry std::string decode_uid_err; 991517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (!DecodeUid(args[2], &uid, &decode_uid_err)) { 992517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry LOG(ERROR) << "Unable to find UID for '" << args[2] << "': " << decode_uid_err; 993517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 994517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 995bac3299720623f4226bca103b26260052732ad30Tom Cherry } 996bac3299720623f4226bca103b26260052732ad30Tom Cherry gid_t gid = 0; 997bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<gid_t> supp_gids; 998bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4) { 999517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry std::string decode_uid_err; 1000517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (!DecodeUid(args[3], &gid, &decode_uid_err)) { 1001517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry LOG(ERROR) << "Unable to find GID for '" << args[3] << "': " << decode_uid_err; 1002517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1003517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 1004bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t nr_supp_gids = command_arg - 1 /* -- */ - 4 /* exec SECLABEL UID GID */; 1005bac3299720623f4226bca103b26260052732ad30Tom Cherry for (size_t i = 0; i < nr_supp_gids; ++i) { 1006517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry gid_t supp_gid; 1007517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (!DecodeUid(args[4 + i], &supp_gid, &decode_uid_err)) { 1008517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry LOG(ERROR) << "Unable to find UID for '" << args[4 + i] << "': " << decode_uid_err; 1009517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1010517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 1011517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry supp_gids.push_back(supp_gid); 1012bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1013bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1014bac3299720623f4226bca103b26260052732ad30Tom Cherry 1015641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang auto svc_p = std::make_unique<Service>(name, flags, uid, gid, supp_gids, no_capabilities, 1016641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang namespace_flags, seclabel, str_args); 1017bac3299720623f4226bca103b26260052732ad30Tom Cherry Service* svc = svc_p.get(); 10189bdddd713af925a4be161f65e5fd66eccc8bd1ebTom Cherry services_.emplace_back(std::move(svc_p)); 1019bac3299720623f4226bca103b26260052732ad30Tom Cherry 1020bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc; 1021bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1022bac3299720623f4226bca103b26260052732ad30Tom Cherry 1023bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::FindServiceByName(const std::string& name) const { 1024bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc = std::find_if(services_.begin(), services_.end(), 1025bac3299720623f4226bca103b26260052732ad30Tom Cherry [&name] (const std::unique_ptr<Service>& s) { 1026bac3299720623f4226bca103b26260052732ad30Tom Cherry return name == s->name(); 1027bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 1028bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc != services_.end()) { 1029bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc->get(); 1030bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1031bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 1032bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1033bac3299720623f4226bca103b26260052732ad30Tom Cherry 1034bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::FindServiceByPid(pid_t pid) const { 1035bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc = std::find_if(services_.begin(), services_.end(), 1036bac3299720623f4226bca103b26260052732ad30Tom Cherry [&pid] (const std::unique_ptr<Service>& s) { 1037bac3299720623f4226bca103b26260052732ad30Tom Cherry return s->pid() == pid; 1038bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 1039bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc != services_.end()) { 1040bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc->get(); 1041bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1042bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 1043bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1044bac3299720623f4226bca103b26260052732ad30Tom Cherry 1045bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::FindServiceByKeychord(int keychord_id) const { 1046bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc = std::find_if(services_.begin(), services_.end(), 1047bac3299720623f4226bca103b26260052732ad30Tom Cherry [&keychord_id] (const std::unique_ptr<Service>& s) { 1048bac3299720623f4226bca103b26260052732ad30Tom Cherry return s->keychord_id() == keychord_id; 1049bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 1050bac3299720623f4226bca103b26260052732ad30Tom Cherry 1051bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc != services_.end()) { 1052bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc->get(); 1053bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1054bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 1055bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1056bac3299720623f4226bca103b26260052732ad30Tom Cherry 10578f7b9e3d39cdae8363816aa7bcbab0d79fd70ceaChih-Hung Hsiehvoid ServiceManager::ForEachService(const std::function<void(Service*)>& callback) const { 1058bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& s : services_) { 1059b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET callback(s.get()); 1060bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1061bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1062bac3299720623f4226bca103b26260052732ad30Tom Cherry 1063bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid ServiceManager::ForEachServiceInClass(const std::string& classname, 1064bac3299720623f4226bca103b26260052732ad30Tom Cherry void (*func)(Service* svc)) const { 1065bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& s : services_) { 1066641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang if (s->classnames().find(classname) != s->classnames().end()) { 1067bac3299720623f4226bca103b26260052732ad30Tom Cherry func(s.get()); 1068bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1069bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1070bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1071bac3299720623f4226bca103b26260052732ad30Tom Cherry 1072bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid ServiceManager::ForEachServiceWithFlags(unsigned matchflags, 1073bac3299720623f4226bca103b26260052732ad30Tom Cherry void (*func)(Service* svc)) const { 1074bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& s : services_) { 1075bac3299720623f4226bca103b26260052732ad30Tom Cherry if (s->flags() & matchflags) { 1076bac3299720623f4226bca103b26260052732ad30Tom Cherry func(s.get()); 1077bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1078bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1079bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1080bac3299720623f4226bca103b26260052732ad30Tom Cherry 1081b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceManager::RemoveService(const Service& svc) { 1082bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc_it = std::find_if(services_.begin(), services_.end(), 1083bac3299720623f4226bca103b26260052732ad30Tom Cherry [&svc] (const std::unique_ptr<Service>& s) { 1084bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc.name() == s->name(); 1085bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 1086bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc_it == services_.end()) { 1087bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 1088bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1089bac3299720623f4226bca103b26260052732ad30Tom Cherry 1090bac3299720623f4226bca103b26260052732ad30Tom Cherry services_.erase(svc_it); 1091bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1092bac3299720623f4226bca103b26260052732ad30Tom Cherry 1093b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceManager::DumpState() const { 1094b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (const auto& s : services_) { 1095b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry s->DumpState(); 1096b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1097b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1098b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1099b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETbool ServiceManager::ReapOneProcess() { 1100b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET int status; 1101b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET pid_t pid = TEMP_FAILURE_RETRY(waitpid(-1, &status, WNOHANG)); 1102b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (pid == 0) { 1103b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return false; 1104b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else if (pid == -1) { 1105f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "waitpid failed"; 1106b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return false; 110762696908ff840aeb3663b7510c0ae8ff208604f5Tom Marshall } else if (PropertyChildReap(pid)) { 110862696908ff840aeb3663b7510c0ae8ff208604f5Tom Marshall return true; 1109b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 1110b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 1111b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET Service* svc = FindServiceByPid(pid); 1112b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 1113b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET std::string name; 11144de31e1481dbbe6f08d85f341fa4884443433f35Keun-young Park std::string wait_string; 1115b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (svc) { 111681f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry name = StringPrintf("Service '%s' (pid %d)", svc->name().c_str(), pid); 11174de31e1481dbbe6f08d85f341fa4884443433f35Keun-young Park if (svc->flags() & SVC_EXEC) { 111881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry wait_string = StringPrintf(" waiting took %f seconds", exec_waiter_->duration_s()); 11194de31e1481dbbe6f08d85f341fa4884443433f35Keun-young Park } 1120b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else { 112181f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry name = StringPrintf("Untracked pid %d", pid); 1122b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 1123b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 1124b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (WIFEXITED(status)) { 11254de31e1481dbbe6f08d85f341fa4884443433f35Keun-young Park LOG(INFO) << name << " exited with status " << WEXITSTATUS(status) << wait_string; 1126b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else if (WIFSIGNALED(status)) { 11274de31e1481dbbe6f08d85f341fa4884443433f35Keun-young Park LOG(INFO) << name << " killed by signal " << WTERMSIG(status) << wait_string; 1128b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else if (WIFSTOPPED(status)) { 11294de31e1481dbbe6f08d85f341fa4884443433f35Keun-young Park LOG(INFO) << name << " stopped by signal " << WSTOPSIG(status) << wait_string; 1130b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else { 11314de31e1481dbbe6f08d85f341fa4884443433f35Keun-young Park LOG(INFO) << name << " state changed" << wait_string; 1132b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 1133b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 1134b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (!svc) { 1135b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return true; 1136b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 1137b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 1138b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry svc->Reap(); 1139b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 1140b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if (svc->flags() & SVC_EXEC) { 1141b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry exec_waiter_.reset(); 1142b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry } 1143b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if (svc->flags() & SVC_TEMPORARY) { 1144b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET RemoveService(*svc); 1145b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 1146b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 1147b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return true; 1148b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 1149b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 1150b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETvoid ServiceManager::ReapAnyOutstandingChildren() { 1151b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET while (ReapOneProcess()) { 1152b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 1153b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 1154b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 115530a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherrybool ServiceParser::ParseSection(std::vector<std::string>&& args, const std::string& filename, 1156012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry int line, std::string* err) { 1157b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args.size() < 3) { 1158b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "services must have a name and a program"; 1159b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 1160b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1161b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1162b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry const std::string& name = args[1]; 1163b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!IsValidName(name)) { 1164b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = StringPrintf("invalid service name '%s'", name.c_str()); 1165b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 1166b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1167b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 116830a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry Service* old_service = service_manager_->FindServiceByName(name); 116930a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry if (old_service) { 117030a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry *err = "ignored duplicate definition of service '" + name + "'"; 117130a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry return false; 117230a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry } 117330a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry 1174b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 2, args.end()); 1175641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang service_ = std::make_unique<Service>(name, str_args); 1176b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 1177b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1178b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 117930a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherrybool ServiceParser::ParseLineSection(std::vector<std::string>&& args, int line, std::string* err) { 118030a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry return service_ ? service_->ParseLine(std::move(args), err) : false; 1181b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1182b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1183b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceParser::EndSection() { 1184b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (service_) { 118530a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry service_manager_->AddService(std::move(service_)); 1186b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1187b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1188b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1189b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::IsValidName(const std::string& name) const { 1190b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // Property names can be any length, but may only contain certain characters. 1191b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // Property values can contain any characters, but may only be a certain length. 1192b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // (The latter restriction is needed because `start` and `stop` work by writing 1193b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // the service name to the "ctl.start" and "ctl.stop" properties.) 1194b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes return is_legal_property_name("init.svc." + name) && name.size() <= PROP_VALUE_MAX; 1195bac3299720623f4226bca103b26260052732ad30Tom Cherry} 119681f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry 119781f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry} // namespace init 119881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry} // namespace android 1199