service.cpp revision 11a3aeeae3dc887b889d4086d4d26d95c324c08d
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> 378d13d808a5634701c55276796683857ac2d5c99aTom Cherry#include <android-base/scopeguard.h> 384f71319df011d796a60a43fc1bc68e16fbf7d321Elliott Hughes#include <android-base/stringprintf.h> 39f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes#include <android-base/strings.h> 40f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner#include <processgroup/processgroup.h> 413f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <selinux/selinux.h> 423f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <system/thread_defs.h> 43f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner 44bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "init.h" 45bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "property_service.h" 46bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "util.h" 47bac3299720623f4226bca103b26260052732ad30Tom Cherry 48e78ea77f6992013b16fd57c07548b53129cdd12fJames Hawkinsusing android::base::boot_clock; 4981f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::GetProperty; 5081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::Join; 518d13d808a5634701c55276796683857ac2d5c99aTom Cherryusing android::base::make_scope_guard; 52da46b392f10d2809b5696632f67485f272ec5698Elliott Hughesusing android::base::ParseInt; 5381f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::StartsWith; 54b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::StringPrintf; 55b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::WriteStringToFile; 56b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 5781f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherrynamespace android { 5881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherrynamespace init { 5981f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry 60344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesstatic std::string ComputeContextFromExecutable(std::string& service_name, 61344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes const std::string& service_path) { 62344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::string computed_context; 63344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 64344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_con = nullptr; 65344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_filecon = nullptr; 66344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 67344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getcon(&raw_con) == -1) { 68344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "could not get context while starting '" << service_name << "'"; 69344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 70344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 71344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::unique_ptr<char> mycon(raw_con); 72344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 73344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getfilecon(service_path.c_str(), &raw_filecon) == -1) { 74344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "could not get file context while starting '" << service_name << "'"; 75344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 76344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 77344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::unique_ptr<char> filecon(raw_filecon); 78344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 79344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* new_con = nullptr; 80344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes int rc = security_compute_create(mycon.get(), filecon.get(), 81344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes string_to_security_class("process"), &new_con); 82344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc == 0) { 83344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes computed_context = new_con; 84344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes free(new_con); 85344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 86344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc == 0 && computed_context == mycon.get()) { 87344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "service " << service_name << " does not have a SELinux domain defined"; 88344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 89344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 90344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc < 0) { 91344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(ERROR) << "could not get context while starting '" << service_name << "'"; 92344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return ""; 93344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 94344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return computed_context; 95344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 96344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 971b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obesstatic void SetUpPidNamespace(const std::string& service_name) { 981b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes constexpr unsigned int kSafeFlags = MS_NODEV | MS_NOEXEC | MS_NOSUID; 991b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1001b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // It's OK to LOG(FATAL) in this function since it's running in the first 1011b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // child process. 1021b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (mount("", "/proc", "proc", kSafeFlags | MS_REMOUNT, "") == -1) { 103e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't remount(/proc) for " << service_name; 1041b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1051b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1061b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (prctl(PR_SET_NAME, service_name.c_str()) == -1) { 107e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't set name for " << service_name; 1081b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1091b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1101b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t child_pid = fork(); 1111b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid == -1) { 112e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't fork init inside the PID namespace for " << service_name; 1131b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1141b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1151b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid > 0) { 1161b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // So that we exit with the right status. 1171b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes static int init_exitstatus = 0; 1181b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes signal(SIGTERM, [](int) { _exit(init_exitstatus); }); 1191b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1201b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t waited_pid; 1211b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes int status; 1221b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes while ((waited_pid = wait(&status)) > 0) { 1231b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This loop will end when there are no processes left inside the 1241b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespace or when the init process inside the PID namespace 1251b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // gets a signal. 1261b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (waited_pid == child_pid) { 1271b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes init_exitstatus = status; 1281b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1291b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1301b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (!WIFEXITED(init_exitstatus)) { 1311b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(EXIT_FAILURE); 1321b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1331b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(WEXITSTATUS(init_exitstatus)); 1341b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1351b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 1361b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 137344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesstatic void ExpandArgs(const std::vector<std::string>& args, std::vector<char*>* strs) { 138344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::vector<std::string> expanded_args; 139344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes expanded_args.resize(args.size()); 140344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes strs->push_back(const_cast<char*>(args[0].c_str())); 141344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes for (std::size_t i = 1; i < args.size(); ++i) { 142344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!expand_props(args[i], &expanded_args[i])) { 143344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(FATAL) << args[0] << ": cannot expand '" << args[i] << "'"; 144344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 145344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes strs->push_back(const_cast<char*>(expanded_args[i].c_str())); 146344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 147344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes strs->push_back(nullptr); 148344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 149344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 150bac3299720623f4226bca103b26260052732ad30Tom CherryServiceEnvironmentInfo::ServiceEnvironmentInfo() { 151bac3299720623f4226bca103b26260052732ad30Tom Cherry} 152bac3299720623f4226bca103b26260052732ad30Tom Cherry 153bac3299720623f4226bca103b26260052732ad30Tom CherryServiceEnvironmentInfo::ServiceEnvironmentInfo(const std::string& name, 154bac3299720623f4226bca103b26260052732ad30Tom Cherry const std::string& value) 155bac3299720623f4226bca103b26260052732ad30Tom Cherry : name(name), value(value) { 156bac3299720623f4226bca103b26260052732ad30Tom Cherry} 157bac3299720623f4226bca103b26260052732ad30Tom Cherry 1585938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherryunsigned long Service::next_start_order_ = 1; 1593b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherrybool Service::is_exec_service_running_ = false; 1605938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry 161641ff0a4d8d05349d9c22f726a035a2936a2a94dWei WangService::Service(const std::string& name, const std::vector<std::string>& args) 1625d17d044c757d2419194f057bd3191f145da4aa5Tom Cherry : Service(name, 0, 0, 0, {}, 0, 0, "", args) {} 163bac3299720623f4226bca103b26260052732ad30Tom Cherry 164641ff0a4d8d05349d9c22f726a035a2936a2a94dWei WangService::Service(const std::string& name, unsigned flags, uid_t uid, gid_t gid, 165641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang const std::vector<gid_t>& supp_gids, const CapSet& capabilities, 166641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang unsigned namespace_flags, const std::string& seclabel, 1671b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes const std::vector<std::string>& args) 168641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang : name_(name), 169641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang classnames_({"default"}), 170641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang flags_(flags), 171641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang pid_(0), 172641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang crash_count_(0), 173641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang uid_(uid), 174641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang gid_(gid), 175641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang supp_gids_(supp_gids), 176641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang capabilities_(capabilities), 177641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang namespace_flags_(namespace_flags), 178641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang seclabel_(seclabel), 179012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry onrestart_(false, "<Service '" + name + "' onrestart>", 0), 1807da548578c25683fe0082283303e16961df312daTom Cherry keychord_id_(0), 181641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_class_(IoSchedClass_NONE), 182641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_pri_(0), 183641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang priority_(0), 184641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang oom_score_adjust_(-1000), 185d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea swappiness_(-1), 186d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea soft_limit_in_bytes_(-1), 187d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea limit_in_bytes_(-1), 1885938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry start_order_(0), 189641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang args_(args) { 190bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.InitSingleTrigger("onrestart"); 191bac3299720623f4226bca103b26260052732ad30Tom Cherry} 192bac3299720623f4226bca103b26260052732ad30Tom Cherry 193bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::NotifyStateChange(const std::string& new_state) const { 194b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if ((flags_ & SVC_TEMPORARY) != 0) { 195b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry // Services created by 'exec' are temporary and don't have properties tracking their state. 196bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 197bac3299720623f4226bca103b26260052732ad30Tom Cherry } 198bac3299720623f4226bca103b26260052732ad30Tom Cherry 1991c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string prop_name = "init.svc." + name_; 2001c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry property_set(prop_name, new_state); 2019605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes 2029605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (new_state == "running") { 2039605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes uint64_t start_ns = time_started_.time_since_epoch().count(); 2041c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry property_set("ro.boottime." + name_, std::to_string(start_ns)); 2059605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes } 206bac3299720623f4226bca103b26260052732ad30Tom Cherry} 207bac3299720623f4226bca103b26260052732ad30Tom Cherry 208ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughesvoid Service::KillProcessGroup(int signal) { 20933838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // If we've already seen a successful result from killProcessGroup*(), then we have removed 21033838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // the cgroup already and calling these functions a second time will simply result in an error. 21133838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // This is true regardless of which signal was sent. 21233838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // These functions handle their own logging, so no additional logging is needed. 21333838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (!process_cgroup_empty_) { 21433838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry LOG(INFO) << "Sending signal " << signal << " to service '" << name_ << "' (pid " << pid_ 21533838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry << ") process group..."; 21633838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry int r; 21733838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (signal == SIGTERM) { 21833838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry r = killProcessGroupOnce(uid_, pid_, signal); 21933838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } else { 22033838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry r = killProcessGroup(uid_, pid_, signal); 22133838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } 22233838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry 22333838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (r == 0) process_cgroup_empty_ = true; 22433838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } 225ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes} 226ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 227344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesvoid Service::SetProcessAttributes() { 22824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes // Keep capabilites on uid change. 22924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any() && uid_) { 230f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez // If Android is running in a container, some securebits might already 231f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez // be locked, so don't change those. 232a72436067d5f88885e4b32fa7c5d22f1ea8c0756Ben Fennema unsigned long securebits = prctl(PR_GET_SECUREBITS); 233a72436067d5f88885e4b32fa7c5d22f1ea8c0756Ben Fennema if (securebits == -1UL) { 234f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez PLOG(FATAL) << "prctl(PR_GET_SECUREBITS) failed for " << name_; 235f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez } 236f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez securebits |= SECBIT_KEEP_CAPS | SECBIT_KEEP_CAPS_LOCKED; 237f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez if (prctl(PR_SET_SECUREBITS, securebits) != 0) { 238f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez PLOG(FATAL) << "prctl(PR_SET_SECUREBITS) failed for " << name_; 23924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 24024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 24124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 242e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes // TODO: work out why this fails for `console` then upgrade to FATAL. 243e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes if (setpgid(0, getpid()) == -1) PLOG(ERROR) << "setpgid failed for " << name_; 244344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 245344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (gid_) { 246344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setgid(gid_) != 0) { 247e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setgid failed for " << name_; 248344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 249344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 25080960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich if (setgroups(supp_gids_.size(), &supp_gids_[0]) != 0) { 25180960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich PLOG(FATAL) << "setgroups failed for " << name_; 252344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 253344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (uid_) { 254344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setuid(uid_) != 0) { 255e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setuid failed for " << name_; 256344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 257344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 258344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!seclabel_.empty()) { 259344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setexeccon(seclabel_.c_str()) < 0) { 260e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "cannot setexeccon('" << seclabel_ << "') for " << name_; 261344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 262344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 263344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (priority_ != 0) { 264344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setpriority(PRIO_PROCESS, 0, priority_) != 0) { 265e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setpriority failed for " << name_; 266344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 267344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 26824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any()) { 26924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (!SetCapsForExec(capabilities_)) { 27024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes LOG(FATAL) << "cannot set capabilities for " << name_; 27124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 27224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 273344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 274344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 275b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherryvoid Service::Reap() { 276bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_ONESHOT) || (flags_ & SVC_RESTART)) { 277ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 278bac3299720623f4226bca103b26260052732ad30Tom Cherry } 279bac3299720623f4226bca103b26260052732ad30Tom Cherry 28062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn // Remove any descriptor resources we may have created. 28162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 28262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::Clean, std::placeholders::_1)); 283bac3299720623f4226bca103b26260052732ad30Tom Cherry 2843b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry if (flags_ & SVC_EXEC) UnSetExec(); 2853b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 2863b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry if (flags_ & SVC_TEMPORARY) return; 287bac3299720623f4226bca103b26260052732ad30Tom Cherry 288bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 289bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RUNNING); 2905938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry start_order_ = 0; 291bac3299720623f4226bca103b26260052732ad30Tom Cherry 292bac3299720623f4226bca103b26260052732ad30Tom Cherry // Oneshot processes go into the disabled state on exit, 293bac3299720623f4226bca103b26260052732ad30Tom Cherry // except when manually restarted. 294bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_ONESHOT) && !(flags_ & SVC_RESTART)) { 295bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 296bac3299720623f4226bca103b26260052732ad30Tom Cherry } 297bac3299720623f4226bca103b26260052732ad30Tom Cherry 298bac3299720623f4226bca103b26260052732ad30Tom Cherry // Disabled and reset processes do not get restarted automatically. 299bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & (SVC_DISABLED | SVC_RESET)) { 300bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 301b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return; 302bac3299720623f4226bca103b26260052732ad30Tom Cherry } 303bac3299720623f4226bca103b26260052732ad30Tom Cherry 3049605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes // If we crash > 4 times in 4 minutes, reboot into recovery. 3059605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes boot_clock::time_point now = boot_clock::now(); 306bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_CRITICAL) && !(flags_ & SVC_RESTART)) { 3079605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (now < time_crashed_ + 4min) { 3089605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (++crash_count_ > 4) { 309331cf2fb7c16b5b25064f8d2f00284105a9b413fElliott Hughes LOG(ERROR) << "critical process '" << name_ << "' exited 4 times in 4 minutes"; 310331cf2fb7c16b5b25064f8d2f00284105a9b413fElliott Hughes panic(); 311bac3299720623f4226bca103b26260052732ad30Tom Cherry } 312bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 313bac3299720623f4226bca103b26260052732ad30Tom Cherry time_crashed_ = now; 3149605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes crash_count_ = 1; 315bac3299720623f4226bca103b26260052732ad30Tom Cherry } 316bac3299720623f4226bca103b26260052732ad30Tom Cherry } 317bac3299720623f4226bca103b26260052732ad30Tom Cherry 318bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RESTART); 319bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RESTARTING; 320bac3299720623f4226bca103b26260052732ad30Tom Cherry 321bac3299720623f4226bca103b26260052732ad30Tom Cherry // Execute all onrestart commands for this service. 322bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.ExecuteAllCommands(); 323bac3299720623f4226bca103b26260052732ad30Tom Cherry 324bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("restarting"); 325b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return; 326bac3299720623f4226bca103b26260052732ad30Tom Cherry} 327bac3299720623f4226bca103b26260052732ad30Tom Cherry 328bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::DumpState() const { 329f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << "service " << name_; 33081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry LOG(INFO) << " class '" << Join(classnames_, " ") << "'"; 33181f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry LOG(INFO) << " exec " << Join(args_, " "); 33262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 33362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [] (const auto& info) { LOG(INFO) << *info; }); 334bac3299720623f4226bca103b26260052732ad30Tom Cherry} 335bac3299720623f4226bca103b26260052732ad30Tom Cherry 33624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obesbool Service::ParseCapabilities(const std::vector<std::string>& args, std::string* err) { 33724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_ = 0; 33824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 339f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (!CapAmbientSupported()) { 340f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes *err = "capabilities requested but the kernel does not support ambient capabilities"; 341f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes return false; 342f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 343f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes 344f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes unsigned int last_valid_cap = GetLastValidCap(); 345f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (last_valid_cap >= capabilities_.size()) { 346f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes LOG(WARNING) << "last valid run-time capability is larger than CAP_LAST_CAP"; 347f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 348f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes 34924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 35024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const std::string& arg = args[i]; 351f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes int res = LookupCap(arg); 352f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (res < 0) { 35324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes *err = StringPrintf("invalid capability '%s'", arg.c_str()); 35424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes return false; 35524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 356f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes unsigned int cap = static_cast<unsigned int>(res); // |res| is >= 0. 357f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (cap > last_valid_cap) { 358f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes *err = StringPrintf("capability '%s' not supported by the kernel", arg.c_str()); 359f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes return false; 360f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 36124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_[cap] = true; 36224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 36324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes return true; 36424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes} 36524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 366177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseClass(const std::vector<std::string>& args, std::string* err) { 367641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang classnames_ = std::set<std::string>(args.begin() + 1, args.end()); 368b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 369b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 370bac3299720623f4226bca103b26260052732ad30Tom Cherry 371177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseConsole(const std::vector<std::string>& args, std::string* err) { 372b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CONSOLE; 37370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = args.size() > 1 ? "/dev/" + args[1] : ""; 374b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 375b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 376bac3299720623f4226bca103b26260052732ad30Tom Cherry 377177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseCritical(const std::vector<std::string>& args, std::string* err) { 378b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CRITICAL; 379b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 380b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 381bac3299720623f4226bca103b26260052732ad30Tom Cherry 382177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseDisabled(const std::vector<std::string>& args, std::string* err) { 383b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_DISABLED; 384b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_RC_DISABLED; 385b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 386b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 387bac3299720623f4226bca103b26260052732ad30Tom Cherry 388177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseGroup(const std::vector<std::string>& args, std::string* err) { 38911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto gid = DecodeUid(args[1]); 39011a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 39111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry *err = "Unable to decode GID for '" + args[1] + "': " + gid.error(); 392517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 393517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 39411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid_ = *gid; 39511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry 396b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t n = 2; n < args.size(); n++) { 39711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid = DecodeUid(args[n]); 39811a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 39911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry *err = "Unable to decode GID for '" + args[n] + "': " + gid.error(); 400517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 401517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 40211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry supp_gids_.emplace_back(*gid); 403b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 404b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 405b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 406bac3299720623f4226bca103b26260052732ad30Tom Cherry 407177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParsePriority(const std::vector<std::string>& args, std::string* err) { 408da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes priority_ = 0; 409da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &priority_, 410dd34ca45ea80c519a579578562e73d5e7f86703bKeun-young Park static_cast<int>(ANDROID_PRIORITY_HIGHEST), // highest is negative 411dd34ca45ea80c519a579578562e73d5e7f86703bKeun-young Park static_cast<int>(ANDROID_PRIORITY_LOWEST))) { 412081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv *err = StringPrintf("process priority value must be range %d - %d", 413081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv ANDROID_PRIORITY_HIGHEST, ANDROID_PRIORITY_LOWEST); 414081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv return false; 415081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv } 416081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv return true; 417081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv} 418081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv 419177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseIoprio(const std::vector<std::string>& args, std::string* err) { 420da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[2], &ioprio_pri_, 0, 7)) { 421b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "priority value must be range 0 - 7"; 422b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 423b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 424b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 425b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args[1] == "rt") { 426b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_RT; 427b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "be") { 428b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_BE; 429b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "idle") { 430b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_IDLE; 431b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else { 432b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "ioprio option usage: ioprio <rt|be|idle> <0-7>"; 433b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 434bac3299720623f4226bca103b26260052732ad30Tom Cherry } 435bac3299720623f4226bca103b26260052732ad30Tom Cherry 436b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 437b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 438bac3299720623f4226bca103b26260052732ad30Tom Cherry 439177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseKeycodes(const std::vector<std::string>& args, std::string* err) { 440b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t i = 1; i < args.size(); i++) { 441da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes int code; 442da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (ParseInt(args[i], &code)) { 443da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes keycodes_.emplace_back(code); 444da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } else { 445da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes LOG(WARNING) << "ignoring invalid keycode: " << args[i]; 446da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } 447bac3299720623f4226bca103b26260052732ad30Tom Cherry } 448b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 449b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 450b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 451177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseOneshot(const std::vector<std::string>& args, std::string* err) { 452b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_ONESHOT; 453b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 454b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 455b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 456177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseOnrestart(const std::vector<std::string>& args, std::string* err) { 457b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 1, args.end()); 458012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry int line = onrestart_.NumCommands() + 1; 459012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry onrestart_.AddCommand(str_args, line, err); 460b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 461b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 462bac3299720623f4226bca103b26260052732ad30Tom Cherry 463177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseNamespace(const std::vector<std::string>& args, std::string* err) { 4641b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 4651b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (args[i] == "pid") { 4661b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWPID; 4671b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespaces require mount namespaces. 4681b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 4691b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else if (args[i] == "mnt") { 4701b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 4711b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 4721b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes *err = "namespace must be 'pid' or 'mnt'"; 4731b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes return false; 4741b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 4751b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 4761b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes return true; 4771b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 4781b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 479310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissenbool Service::ParseOomScoreAdjust(const std::vector<std::string>& args, std::string* err) { 480da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &oom_score_adjust_, -1000, 1000)) { 481310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen *err = "oom_score_adjust value must be in range -1000 - +1000"; 482310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen return false; 483310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 484310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen return true; 485310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen} 486310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 487d485226951013247dbb502fef7edbc6cf83acb0fRobert Beneabool Service::ParseMemcgSwappiness(const std::vector<std::string>& args, std::string* err) { 488d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!ParseInt(args[1], &swappiness_, 0)) { 489d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea *err = "swappiness value must be equal or greater than 0"; 490d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea return false; 491d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 492d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea return true; 493d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea} 494d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 495d485226951013247dbb502fef7edbc6cf83acb0fRobert Beneabool Service::ParseMemcgLimitInBytes(const std::vector<std::string>& args, std::string* err) { 496d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!ParseInt(args[1], &limit_in_bytes_, 0)) { 497d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea *err = "limit_in_bytes value must be equal or greater than 0"; 498d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea return false; 499d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 500d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea return true; 501d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea} 502d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 503d485226951013247dbb502fef7edbc6cf83acb0fRobert Beneabool Service::ParseMemcgSoftLimitInBytes(const std::vector<std::string>& args, std::string* err) { 504d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!ParseInt(args[1], &soft_limit_in_bytes_, 0)) { 505d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea *err = "soft_limit_in_bytes value must be equal or greater than 0"; 506d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea return false; 507d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 508d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea return true; 509d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea} 510d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 511177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSeclabel(const std::vector<std::string>& args, std::string* err) { 512b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry seclabel_ = args[1]; 513b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 514b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 515b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 516177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSetenv(const std::vector<std::string>& args, std::string* err) { 517b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry envvars_.emplace_back(args[1], args[2]); 518b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 519b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 520b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 521cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Parkbool Service::ParseShutdown(const std::vector<std::string>& args, std::string* err) { 522cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park if (args[1] == "critical") { 523cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park flags_ |= SVC_SHUTDOWN_CRITICAL; 524cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park return true; 525cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park } 526cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park return false; 527cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park} 528cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park 52962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyntemplate <typename T> 53062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzynbool Service::AddDescriptor(const std::vector<std::string>& args, std::string* err) { 53162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn int perm = args.size() > 3 ? std::strtoul(args[3].c_str(), 0, 8) : -1; 53211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<uid_t> uid = 0; 53311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<gid_t> gid = 0; 53462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::string context = args.size() > 6 ? args[6] : ""; 53562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 536517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (args.size() > 4) { 53711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry uid = DecodeUid(args[4]); 53811a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!uid) { 53911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry *err = "Unable to find UID for '" + args[4] + "': " + uid.error(); 540517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 541517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 542517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 543517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry 544517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (args.size() > 5) { 54511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid = DecodeUid(args[5]); 54611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 54711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry *err = "Unable to find GID for '" + args[5] + "': " + gid.error(); 548517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 549517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 550517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 551517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry 55211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto descriptor = std::make_unique<T>(args[1], args[2], *uid, *gid, perm, context); 55362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 55462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn auto old = 55562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::find_if(descriptors_.begin(), descriptors_.end(), 55662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [&descriptor] (const auto& other) { return descriptor.get() == other.get(); }); 55762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 55862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (old != descriptors_.end()) { 55962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn *err = "duplicate descriptor " + args[1] + " " + args[2]; 56062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return false; 56162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 56262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 56362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn descriptors_.emplace_back(std::move(descriptor)); 56462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return true; 56562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 56662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 56762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 568177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSocket(const std::vector<std::string>& args, std::string* err) { 56981f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry if (!StartsWith(args[2], "dgram") && !StartsWith(args[2], "stream") && 57081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry !StartsWith(args[2], "seqpacket")) { 571b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "socket type must be 'dgram', 'stream' or 'seqpacket'"; 572bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 573bac3299720623f4226bca103b26260052732ad30Tom Cherry } 57462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return AddDescriptor<SocketInfo>(args, err); 57562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 576b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 57762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 57862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzynbool Service::ParseFile(const std::vector<std::string>& args, std::string* err) { 57962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (args[2] != "r" && args[2] != "w" && args[2] != "rw") { 58062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn *err = "file type must be 'r', 'w' or 'rw'"; 58162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return false; 58262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 58362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if ((args[1][0] != '/') || (args[1].find("../") != std::string::npos)) { 58462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn *err = "file name must not be relative"; 58562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return false; 58662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 58762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn return AddDescriptor<FileInfo>(args, err); 588bac3299720623f4226bca103b26260052732ad30Tom Cherry} 589bac3299720623f4226bca103b26260052732ad30Tom Cherry 590177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseUser(const std::vector<std::string>& args, std::string* err) { 59111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto uid = DecodeUid(args[1]); 59211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!uid) { 59311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry *err = "Unable to find UID for '" + args[1] + "': " + uid.error(); 594517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return false; 595517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 59611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry uid_ = *uid; 597b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 598b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 599b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 600177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseWritepid(const std::vector<std::string>& args, std::string* err) { 601b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry writepid_files_.assign(args.begin() + 1, args.end()); 602b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 603b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 604b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 605177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesclass Service::OptionParserMap : public KeywordMap<OptionParser> { 606ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry public: 607ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry OptionParserMap() {} 608ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry 609ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry private: 610ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry const Map& map() const override; 611b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry}; 612b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 613ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherryconst Service::OptionParserMap::Map& Service::OptionParserMap::map() const { 614b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry constexpr std::size_t kMax = std::numeric_limits<std::size_t>::max(); 615641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang // clang-format off 616177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const Map option_parsers = { 61724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {"capabilities", 61824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {1, kMax, &Service::ParseCapabilities}}, 619641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang {"class", {1, kMax, &Service::ParseClass}}, 620177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"console", {0, 1, &Service::ParseConsole}}, 621177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"critical", {0, 0, &Service::ParseCritical}}, 622177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"disabled", {0, 0, &Service::ParseDisabled}}, 623177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"group", {1, NR_SVC_SUPP_GIDS + 1, &Service::ParseGroup}}, 624177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"ioprio", {2, 2, &Service::ParseIoprio}}, 625177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"priority", {1, 1, &Service::ParsePriority}}, 626177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"keycodes", {1, kMax, &Service::ParseKeycodes}}, 627177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"oneshot", {0, 0, &Service::ParseOneshot}}, 628177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"onrestart", {1, kMax, &Service::ParseOnrestart}}, 629310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {"oom_score_adjust", 630310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {1, 1, &Service::ParseOomScoreAdjust}}, 631d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {"memcg.swappiness", 632d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {1, 1, &Service::ParseMemcgSwappiness}}, 633d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {"memcg.soft_limit_in_bytes", 634d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {1, 1, &Service::ParseMemcgSoftLimitInBytes}}, 635d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {"memcg.limit_in_bytes", 636d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {1, 1, &Service::ParseMemcgLimitInBytes}}, 637177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"namespace", {1, 2, &Service::ParseNamespace}}, 638177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"seclabel", {1, 1, &Service::ParseSeclabel}}, 639177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"setenv", {2, 2, &Service::ParseSetenv}}, 640cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park {"shutdown", {1, 1, &Service::ParseShutdown}}, 641177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"socket", {3, 6, &Service::ParseSocket}}, 642978fd0ea254f11f84e38b41a74bbe70c81edc197Mark Salyzyn {"file", {2, 2, &Service::ParseFile}}, 643177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"user", {1, 1, &Service::ParseUser}}, 644177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"writepid", {1, kMax, &Service::ParseWritepid}}, 645b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry }; 646641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang // clang-format on 647177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return option_parsers; 648b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 649b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 650177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseLine(const std::vector<std::string>& args, std::string* err) { 651177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const OptionParserMap parser_map; 652fe062055cb11fcb1a6178b046173fc0361ad5b96Tom Cherry auto parser = parser_map.FindFunction(args, err); 653b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 654177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes if (!parser) { 655b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 656b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 657b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 658177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return (this->*parser)(args, err); 659b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 660b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 6613b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherrybool Service::ExecStart() { 6623b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry flags_ |= SVC_ONESHOT; 663b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 664b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if (!Start()) { 665b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return false; 666b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry } 6673b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 6683b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry flags_ |= SVC_EXEC; 6693b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry is_exec_service_running_ = true; 6703b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 6713b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry LOG(INFO) << "SVC_EXEC pid " << pid_ << " (uid " << uid_ << " gid " << gid_ << "+" 6723b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry << supp_gids_.size() << " context " << (!seclabel_.empty() ? seclabel_ : "default") 6733b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry << ") started; waiting..."; 6743b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 675b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return true; 676b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry} 677b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 678bdeac39a42c1b9c7195ada1c30fe12f94314490fElliott Hughesbool Service::Start() { 679bac3299720623f4226bca103b26260052732ad30Tom Cherry // Starting a service removes it from the disabled or reset state and 680bac3299720623f4226bca103b26260052732ad30Tom Cherry // immediately takes it out of the restarting state if it was in there. 681bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~(SVC_DISABLED|SVC_RESTARTING|SVC_RESET|SVC_RESTART|SVC_DISABLED_START)); 682bac3299720623f4226bca103b26260052732ad30Tom Cherry 683bac3299720623f4226bca103b26260052732ad30Tom Cherry // Running processes require no additional work --- if they're in the 684bac3299720623f4226bca103b26260052732ad30Tom Cherry // process of exiting, we've ensured that they will immediately restart 685bac3299720623f4226bca103b26260052732ad30Tom Cherry // on exit, unless they are ONESHOT. 686bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 687bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 688bac3299720623f4226bca103b26260052732ad30Tom Cherry } 689bac3299720623f4226bca103b26260052732ad30Tom Cherry 690bac3299720623f4226bca103b26260052732ad30Tom Cherry bool needs_console = (flags_ & SVC_CONSOLE); 69170daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (needs_console) { 69270daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (console_.empty()) { 69370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = default_console; 69470daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 69570daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman 69624ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido // Make sure that open call succeeds to ensure a console driver is 69724ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido // properly registered for the device node 69824ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido int console_fd = open(console_.c_str(), O_RDWR | O_CLOEXEC); 69924ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido if (console_fd < 0) { 70024ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido PLOG(ERROR) << "service '" << name_ << "' couldn't open console '" << console_ << "'"; 70170daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman flags_ |= SVC_DISABLED; 70270daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman return false; 70370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 70424ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido close(console_fd); 705bac3299720623f4226bca103b26260052732ad30Tom Cherry } 706bac3299720623f4226bca103b26260052732ad30Tom Cherry 707bac3299720623f4226bca103b26260052732ad30Tom Cherry struct stat sb; 708bac3299720623f4226bca103b26260052732ad30Tom Cherry if (stat(args_[0].c_str(), &sb) == -1) { 709f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "cannot find '" << args_[0] << "', disabling '" << name_ << "'"; 710bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 711bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 712bac3299720623f4226bca103b26260052732ad30Tom Cherry } 713bac3299720623f4226bca103b26260052732ad30Tom Cherry 714bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string scon; 715bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!seclabel_.empty()) { 716bac3299720623f4226bca103b26260052732ad30Tom Cherry scon = seclabel_; 717bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 718344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes scon = ComputeContextFromExecutable(name_, args_[0]); 719344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (scon == "") { 720bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 721bac3299720623f4226bca103b26260052732ad30Tom Cherry } 722bac3299720623f4226bca103b26260052732ad30Tom Cherry } 723bac3299720623f4226bca103b26260052732ad30Tom Cherry 724a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << "starting service '" << name_ << "'..."; 725bac3299720623f4226bca103b26260052732ad30Tom Cherry 7261b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t pid = -1; 7271b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_) { 728344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes pid = clone(nullptr, nullptr, namespace_flags_ | SIGCHLD, nullptr); 7291b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 7301b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid = fork(); 7311b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 7321b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 733bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid == 0) { 734bac3299720623f4226bca103b26260052732ad30Tom Cherry umask(077); 735bac3299720623f4226bca103b26260052732ad30Tom Cherry 7361b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_ & CLONE_NEWPID) { 7371b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This will fork again to run an init process inside the PID 7381b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // namespace. 7391b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes SetUpPidNamespace(name_); 7401b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 7411b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 742bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& ei : envvars_) { 743bac3299720623f4226bca103b26260052732ad30Tom Cherry add_environment(ei.name.c_str(), ei.value.c_str()); 744bac3299720623f4226bca103b26260052732ad30Tom Cherry } 745bac3299720623f4226bca103b26260052732ad30Tom Cherry 74662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 74762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::CreateAndPublish, std::placeholders::_1, scon)); 748bac3299720623f4226bca103b26260052732ad30Tom Cherry 7490828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // See if there were "writepid" instructions to write to files under /dev/cpuset/. 7500828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko auto cpuset_predicate = [](const std::string& path) { 75181f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry return StartsWith(path, "/dev/cpuset/"); 7520828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko }; 7530828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko auto iter = std::find_if(writepid_files_.begin(), writepid_files_.end(), cpuset_predicate); 7540828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (iter == writepid_files_.end()) { 7550828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // There were no "writepid" instructions for cpusets, check if the system default 7560828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // cpuset is specified to be used for the process. 75781f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry std::string default_cpuset = GetProperty("ro.cpuset.default", ""); 7580828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (!default_cpuset.empty()) { 7590828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // Make sure the cpuset name starts and ends with '/'. 7600828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // A single '/' means the 'root' cpuset. 7610828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (default_cpuset.front() != '/') { 7620828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko default_cpuset.insert(0, 1, '/'); 7630828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 7640828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (default_cpuset.back() != '/') { 7650828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko default_cpuset.push_back('/'); 7660828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 7670828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko writepid_files_.push_back( 7680828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko StringPrintf("/dev/cpuset%stasks", default_cpuset.c_str())); 7690828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 7700828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 7711c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string pid_str = std::to_string(getpid()); 772bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& file : writepid_files_) { 773b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!WriteStringToFile(pid_str, file)) { 774f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "couldn't write " << pid_str << " to " << file; 775bac3299720623f4226bca103b26260052732ad30Tom Cherry } 776bac3299720623f4226bca103b26260052732ad30Tom Cherry } 777bac3299720623f4226bca103b26260052732ad30Tom Cherry 778bac3299720623f4226bca103b26260052732ad30Tom Cherry if (ioprio_class_ != IoSchedClass_NONE) { 779bac3299720623f4226bca103b26260052732ad30Tom Cherry if (android_set_ioprio(getpid(), ioprio_class_, ioprio_pri_)) { 780344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "failed to set pid " << getpid() 781f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << " ioprio=" << ioprio_class_ << "," << ioprio_pri_; 782bac3299720623f4226bca103b26260052732ad30Tom Cherry } 783bac3299720623f4226bca103b26260052732ad30Tom Cherry } 784bac3299720623f4226bca103b26260052732ad30Tom Cherry 785bac3299720623f4226bca103b26260052732ad30Tom Cherry if (needs_console) { 786bac3299720623f4226bca103b26260052732ad30Tom Cherry setsid(); 787bac3299720623f4226bca103b26260052732ad30Tom Cherry OpenConsole(); 788bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 789bac3299720623f4226bca103b26260052732ad30Tom Cherry ZapStdio(); 790bac3299720623f4226bca103b26260052732ad30Tom Cherry } 791bac3299720623f4226bca103b26260052732ad30Tom Cherry 792344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // As requested, set our gid, supplemental gids, uid, context, and 793344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // priority. Aborts on failure. 794344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes SetProcessAttributes(); 795bac3299720623f4226bca103b26260052732ad30Tom Cherry 796bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<char*> strs; 797344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes ExpandArgs(args_, &strs); 798bac3536cc949b3af0185e7b8f9b18318b37ac8b0Tom Cherry if (execve(strs[0], (char**) &strs[0], (char**) ENV) < 0) { 799f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "cannot execve('" << strs[0] << "')"; 800bac3299720623f4226bca103b26260052732ad30Tom Cherry } 801bac3299720623f4226bca103b26260052732ad30Tom Cherry 802bac3299720623f4226bca103b26260052732ad30Tom Cherry _exit(127); 803bac3299720623f4226bca103b26260052732ad30Tom Cherry } 804bac3299720623f4226bca103b26260052732ad30Tom Cherry 805bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid < 0) { 806f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "failed to fork for '" << name_ << "'"; 807bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 808bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 809bac3299720623f4226bca103b26260052732ad30Tom Cherry } 810bac3299720623f4226bca103b26260052732ad30Tom Cherry 811310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (oom_score_adjust_ != -1000) { 8121c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string oom_str = std::to_string(oom_score_adjust_); 813310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen std::string oom_file = StringPrintf("/proc/%d/oom_score_adj", pid); 814310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (!WriteStringToFile(oom_str, oom_file)) { 815310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen PLOG(ERROR) << "couldn't write oom_score_adj: " << strerror(errno); 816310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 817310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 818310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 8199605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes time_started_ = boot_clock::now(); 820bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = pid; 821bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RUNNING; 8225938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry start_order_ = next_start_order_++; 82333838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry process_cgroup_empty_ = false; 824ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 825ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes errno = -createProcessGroup(uid_, pid_); 826ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes if (errno != 0) { 827344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "createProcessGroup(" << uid_ << ", " << pid_ << ") failed for service '" 828344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes << name_ << "'"; 829d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } else { 830d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (swappiness_ != -1) { 831d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!setProcessGroupSwappiness(uid_, pid_, swappiness_)) { 832d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea PLOG(ERROR) << "setProcessGroupSwappiness failed"; 833d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 834d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 835d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 836d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (soft_limit_in_bytes_ != -1) { 837d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!setProcessGroupSoftLimit(uid_, pid_, soft_limit_in_bytes_)) { 838d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea PLOG(ERROR) << "setProcessGroupSoftLimit failed"; 839d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 840d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 841d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 842d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (limit_in_bytes_ != -1) { 843d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!setProcessGroupLimit(uid_, pid_, limit_in_bytes_)) { 844d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea PLOG(ERROR) << "setProcessGroupLimit failed"; 845d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 846d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 847ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes } 848bac3299720623f4226bca103b26260052732ad30Tom Cherry 849bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("running"); 850bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 851bac3299720623f4226bca103b26260052732ad30Tom Cherry} 852bac3299720623f4226bca103b26260052732ad30Tom Cherry 853bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::StartIfNotDisabled() { 854bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_DISABLED)) { 855bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 856bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 857bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED_START; 858bac3299720623f4226bca103b26260052732ad30Tom Cherry } 859bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 860bac3299720623f4226bca103b26260052732ad30Tom Cherry} 861bac3299720623f4226bca103b26260052732ad30Tom Cherry 862bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::Enable() { 863bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_DISABLED | SVC_RC_DISABLED); 864bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_DISABLED_START) { 865bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 866bac3299720623f4226bca103b26260052732ad30Tom Cherry } 867bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 868bac3299720623f4226bca103b26260052732ad30Tom Cherry} 869bac3299720623f4226bca103b26260052732ad30Tom Cherry 870bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Reset() { 871bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESET); 872bac3299720623f4226bca103b26260052732ad30Tom Cherry} 873bac3299720623f4226bca103b26260052732ad30Tom Cherry 874bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Stop() { 875bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_DISABLED); 876bac3299720623f4226bca103b26260052732ad30Tom Cherry} 877bac3299720623f4226bca103b26260052732ad30Tom Cherry 878b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETvoid Service::Terminate() { 879b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 880b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ |= SVC_DISABLED; 881b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (pid_) { 882ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGTERM); 883b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET NotifyStateChange("stopping"); 884b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 885b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 886b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 887bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Restart() { 888bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 889bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Stop, wait, then start the service. */ 890bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESTART); 891bac3299720623f4226bca103b26260052732ad30Tom Cherry } else if (!(flags_ & SVC_RESTARTING)) { 892bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Just start the service since it's not running. */ 893bac3299720623f4226bca103b26260052732ad30Tom Cherry Start(); 894bac3299720623f4226bca103b26260052732ad30Tom Cherry } /* else: Service is restarting anyways. */ 895bac3299720623f4226bca103b26260052732ad30Tom Cherry} 896bac3299720623f4226bca103b26260052732ad30Tom Cherry 897ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes// The how field should be either SVC_DISABLED, SVC_RESET, or SVC_RESTART. 898bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::StopOrReset(int how) { 899ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // The service is still SVC_RUNNING until its process exits, but if it has 900ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // already exited it shoudn't attempt a restart yet. 901bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 902bac3299720623f4226bca103b26260052732ad30Tom Cherry 903bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((how != SVC_DISABLED) && (how != SVC_RESET) && (how != SVC_RESTART)) { 904ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // An illegal flag: default to SVC_DISABLED. 905bac3299720623f4226bca103b26260052732ad30Tom Cherry how = SVC_DISABLED; 906bac3299720623f4226bca103b26260052732ad30Tom Cherry } 907ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 908ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // If the service has not yet started, prevent it from auto-starting with its class. 909bac3299720623f4226bca103b26260052732ad30Tom Cherry if (how == SVC_RESET) { 910bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= (flags_ & SVC_RC_DISABLED) ? SVC_DISABLED : SVC_RESET; 911bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 912bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= how; 913bac3299720623f4226bca103b26260052732ad30Tom Cherry } 914bac3299720623f4226bca103b26260052732ad30Tom Cherry 915bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid_) { 916ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 917bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopping"); 918bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 919bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 920bac3299720623f4226bca103b26260052732ad30Tom Cherry } 921bac3299720623f4226bca103b26260052732ad30Tom Cherry} 922bac3299720623f4226bca103b26260052732ad30Tom Cherry 923bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::ZapStdio() const { 924bac3299720623f4226bca103b26260052732ad30Tom Cherry int fd; 925bac3299720623f4226bca103b26260052732ad30Tom Cherry fd = open("/dev/null", O_RDWR); 926bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 927bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 928bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 929bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 930bac3299720623f4226bca103b26260052732ad30Tom Cherry} 931bac3299720623f4226bca103b26260052732ad30Tom Cherry 932bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::OpenConsole() const { 93370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman int fd = open(console_.c_str(), O_RDWR); 93470daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (fd == -1) fd = open("/dev/null", O_RDWR); 935bac3299720623f4226bca103b26260052732ad30Tom Cherry ioctl(fd, TIOCSCTTY, 0); 936bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 937bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 938bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 939bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 940bac3299720623f4226bca103b26260052732ad30Tom Cherry} 941bac3299720623f4226bca103b26260052732ad30Tom Cherry 942911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom CherryServiceList::ServiceList() {} 943bac3299720623f4226bca103b26260052732ad30Tom Cherry 944911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom CherryServiceList& ServiceList::GetInstance() { 945911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry static ServiceList instance; 946bac3299720623f4226bca103b26260052732ad30Tom Cherry return instance; 947bac3299720623f4226bca103b26260052732ad30Tom Cherry} 948bac3299720623f4226bca103b26260052732ad30Tom Cherry 949911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryvoid ServiceList::AddService(std::unique_ptr<Service> service) { 950b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry services_.emplace_back(std::move(service)); 951bac3299720623f4226bca103b26260052732ad30Tom Cherry} 952bac3299720623f4226bca103b26260052732ad30Tom Cherry 9533b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherrystd::unique_ptr<Service> Service::MakeTemporaryOneshotService(const std::vector<std::string>& args) { 954bac3299720623f4226bca103b26260052732ad30Tom Cherry // Parse the arguments: exec [SECLABEL [UID [GID]*] --] COMMAND ARGS... 955bac3299720623f4226bca103b26260052732ad30Tom Cherry // SECLABEL can be a - to denote default 956bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t command_arg = 1; 957bac3299720623f4226bca103b26260052732ad30Tom Cherry for (std::size_t i = 1; i < args.size(); ++i) { 958bac3299720623f4226bca103b26260052732ad30Tom Cherry if (args[i] == "--") { 959bac3299720623f4226bca103b26260052732ad30Tom Cherry command_arg = i + 1; 960bac3299720623f4226bca103b26260052732ad30Tom Cherry break; 961bac3299720623f4226bca103b26260052732ad30Tom Cherry } 962bac3299720623f4226bca103b26260052732ad30Tom Cherry } 963bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4 + NR_SVC_SUPP_GIDS) { 964f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called with too many supplementary group ids"; 965bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 966bac3299720623f4226bca103b26260052732ad30Tom Cherry } 967bac3299720623f4226bca103b26260052732ad30Tom Cherry 968bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg >= args.size()) { 969f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called without command"; 970bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 971bac3299720623f4226bca103b26260052732ad30Tom Cherry } 972bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<std::string> str_args(args.begin() + command_arg, args.end()); 973bac3299720623f4226bca103b26260052732ad30Tom Cherry 9743b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry static size_t exec_count = 0; 9753b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry exec_count++; 9763b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry std::string name = "exec " + std::to_string(exec_count) + " (" + Join(str_args, " ") + ")"; 97786e31a81238fb30d113947e7689a38daf49097f3Tom Cherry 9783b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry unsigned flags = SVC_ONESHOT | SVC_TEMPORARY; 97924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes CapSet no_capabilities; 9801b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes unsigned namespace_flags = 0; 981bac3299720623f4226bca103b26260052732ad30Tom Cherry 982bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string seclabel = ""; 983bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 2 && args[1] != "-") { 984bac3299720623f4226bca103b26260052732ad30Tom Cherry seclabel = args[1]; 985bac3299720623f4226bca103b26260052732ad30Tom Cherry } 98611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<uid_t> uid = 0; 987bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 3) { 98811a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry uid = DecodeUid(args[2]); 98911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!uid) { 99011a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry LOG(ERROR) << "Unable to decode UID for '" << args[2] << "': " << uid.error(); 991517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 992517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 993bac3299720623f4226bca103b26260052732ad30Tom Cherry } 99411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<gid_t> gid = 0; 995bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<gid_t> supp_gids; 996bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4) { 99711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid = DecodeUid(args[3]); 99811a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 99911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry LOG(ERROR) << "Unable to decode GID for '" << args[3] << "': " << gid.error(); 1000517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1001517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 1002bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t nr_supp_gids = command_arg - 1 /* -- */ - 4 /* exec SECLABEL UID GID */; 1003bac3299720623f4226bca103b26260052732ad30Tom Cherry for (size_t i = 0; i < nr_supp_gids; ++i) { 100411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto supp_gid = DecodeUid(args[4 + i]); 100511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!supp_gid) { 100611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry LOG(ERROR) << "Unable to decode GID for '" << args[4 + i] 100711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry << "': " << supp_gid.error(); 1008517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1009517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 101011a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry supp_gids.push_back(*supp_gid); 1011bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1012bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1013bac3299720623f4226bca103b26260052732ad30Tom Cherry 101411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry return std::make_unique<Service>(name, flags, *uid, *gid, supp_gids, no_capabilities, 10153b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry namespace_flags, seclabel, str_args); 1016bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1017bac3299720623f4226bca103b26260052732ad30Tom Cherry 10185938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry// Shutdown services in the opposite order that they were started. 1019911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryconst std::vector<Service*> ServiceList::services_in_shutdown_order() const { 10205938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry std::vector<Service*> shutdown_services; 10215938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry for (const auto& service : services_) { 10225938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry if (service->start_order() > 0) shutdown_services.emplace_back(service.get()); 10235938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry } 10245938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry std::sort(shutdown_services.begin(), shutdown_services.end(), 10255938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry [](const auto& a, const auto& b) { return a->start_order() > b->start_order(); }); 1026911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry return shutdown_services; 1027bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1028bac3299720623f4226bca103b26260052732ad30Tom Cherry 1029911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryvoid ServiceList::RemoveService(const Service& svc) { 1030bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc_it = std::find_if(services_.begin(), services_.end(), 1031bac3299720623f4226bca103b26260052732ad30Tom Cherry [&svc] (const std::unique_ptr<Service>& s) { 1032bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc.name() == s->name(); 1033bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 1034bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc_it == services_.end()) { 1035bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 1036bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1037bac3299720623f4226bca103b26260052732ad30Tom Cherry 1038bac3299720623f4226bca103b26260052732ad30Tom Cherry services_.erase(svc_it); 1039bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1040bac3299720623f4226bca103b26260052732ad30Tom Cherry 1041911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryvoid ServiceList::DumpState() const { 1042b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (const auto& s : services_) { 1043b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry s->DumpState(); 1044b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1045b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1046b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 104730a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherrybool ServiceParser::ParseSection(std::vector<std::string>&& args, const std::string& filename, 1048012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry int line, std::string* err) { 1049b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args.size() < 3) { 1050b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "services must have a name and a program"; 1051b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 1052b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1053b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1054b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry const std::string& name = args[1]; 1055b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!IsValidName(name)) { 1056b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = StringPrintf("invalid service name '%s'", name.c_str()); 1057b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 1058b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1059b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1060911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry Service* old_service = service_list_->FindService(name); 106130a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry if (old_service) { 106230a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry *err = "ignored duplicate definition of service '" + name + "'"; 106330a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry return false; 106430a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry } 106530a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry 1066b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 2, args.end()); 1067641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang service_ = std::make_unique<Service>(name, str_args); 1068b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 1069b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1070b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 107130a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherrybool ServiceParser::ParseLineSection(std::vector<std::string>&& args, int line, std::string* err) { 107230a6f276fd8850b0a78689d7bff3cb06a18cb286Tom Cherry return service_ ? service_->ParseLine(std::move(args), err) : false; 1073b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1074b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1075b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceParser::EndSection() { 1076b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (service_) { 1077911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry service_list_->AddService(std::move(service_)); 1078b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1079b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1080b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1081b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::IsValidName(const std::string& name) const { 1082b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // Property names can be any length, but may only contain certain characters. 1083b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // Property values can contain any characters, but may only be a certain length. 1084b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // (The latter restriction is needed because `start` and `stop` work by writing 1085b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // the service name to the "ctl.start" and "ctl.stop" properties.) 1086b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes return is_legal_property_name("init.svc." + name) && name.size() <= PROP_VALUE_MAX; 1087bac3299720623f4226bca103b26260052732ad30Tom Cherry} 108881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry 108981f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry} // namespace init 109081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry} // namespace android 1091