service.cpp revision 24b29132a017f7fbfd009c3e6aec499d1b815dbf
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> 2024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes#include <linux/securebits.h> 211b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes#include <sched.h> 221b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes#include <sys/mount.h> 231b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes#include <sys/prctl.h> 24081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv#include <sys/resource.h> 25bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <sys/stat.h> 26081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv#include <sys/time.h> 27bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <sys/types.h> 28b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET#include <sys/wait.h> 29bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <termios.h> 30af9ba4dc6ca98e136e887b0baa59b72fb8302dd3Dan Albert#include <unistd.h> 31bac3299720623f4226bca103b26260052732ad30Tom Cherry 32bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <selinux/selinux.h> 33bac3299720623f4226bca103b26260052732ad30Tom Cherry 344f71319df011d796a60a43fc1bc68e16fbf7d321Elliott Hughes#include <android-base/file.h> 35da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes#include <android-base/parseint.h> 364f71319df011d796a60a43fc1bc68e16fbf7d321Elliott Hughes#include <android-base/stringprintf.h> 37f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes#include <android-base/strings.h> 38bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <cutils/android_reboot.h> 39bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <cutils/sockets.h> 40081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv#include <system/thread_defs.h> 41bac3299720623f4226bca103b26260052732ad30Tom Cherry 42f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner#include <processgroup/processgroup.h> 43f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner 44bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "action.h" 45bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "init.h" 46bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "init_parser.h" 47bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "log.h" 48bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "property_service.h" 49bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "util.h" 50bac3299720623f4226bca103b26260052732ad30Tom Cherry 51da46b392f10d2809b5696632f67485f272ec5698Elliott Hughesusing android::base::ParseInt; 52b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::StringPrintf; 53b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::WriteStringToFile; 54b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 55bac3299720623f4226bca103b26260052732ad30Tom Cherry#define CRITICAL_CRASH_THRESHOLD 4 // if we crash >4 times ... 56bac3299720623f4226bca103b26260052732ad30Tom Cherry#define CRITICAL_CRASH_WINDOW (4*60) // ... in 4 minutes, goto recovery 57bac3299720623f4226bca103b26260052732ad30Tom 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 CherrySocketInfo::SocketInfo() : uid(0), gid(0), perm(0) { 149bac3299720623f4226bca103b26260052732ad30Tom Cherry} 150bac3299720623f4226bca103b26260052732ad30Tom Cherry 151bac3299720623f4226bca103b26260052732ad30Tom CherrySocketInfo::SocketInfo(const std::string& name, const std::string& type, uid_t uid, 152bac3299720623f4226bca103b26260052732ad30Tom Cherry gid_t gid, int perm, const std::string& socketcon) 153bac3299720623f4226bca103b26260052732ad30Tom Cherry : name(name), type(type), uid(uid), gid(gid), perm(perm), socketcon(socketcon) { 154bac3299720623f4226bca103b26260052732ad30Tom Cherry} 155bac3299720623f4226bca103b26260052732ad30Tom Cherry 156bac3299720623f4226bca103b26260052732ad30Tom CherryServiceEnvironmentInfo::ServiceEnvironmentInfo() { 157bac3299720623f4226bca103b26260052732ad30Tom Cherry} 158bac3299720623f4226bca103b26260052732ad30Tom Cherry 159bac3299720623f4226bca103b26260052732ad30Tom CherryServiceEnvironmentInfo::ServiceEnvironmentInfo(const std::string& name, 160bac3299720623f4226bca103b26260052732ad30Tom Cherry const std::string& value) 161bac3299720623f4226bca103b26260052732ad30Tom Cherry : name(name), value(value) { 162bac3299720623f4226bca103b26260052732ad30Tom Cherry} 163bac3299720623f4226bca103b26260052732ad30Tom Cherry 164bac3299720623f4226bca103b26260052732ad30Tom CherryService::Service(const std::string& name, const std::string& classname, 165bac3299720623f4226bca103b26260052732ad30Tom Cherry const std::vector<std::string>& args) 166bac3299720623f4226bca103b26260052732ad30Tom Cherry : name_(name), classname_(classname), flags_(0), pid_(0), time_started_(0), 1671b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes time_crashed_(0), nr_crashed_(0), uid_(0), gid_(0), namespace_flags_(0), 1681b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes seclabel_(""), ioprio_class_(IoSchedClass_NONE), ioprio_pri_(0), 169310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen priority_(0), oom_score_adjust_(-1000), args_(args) { 170bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.InitSingleTrigger("onrestart"); 171bac3299720623f4226bca103b26260052732ad30Tom Cherry} 172bac3299720623f4226bca103b26260052732ad30Tom Cherry 173bac3299720623f4226bca103b26260052732ad30Tom CherryService::Service(const std::string& name, const std::string& classname, 1741b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes unsigned flags, uid_t uid, gid_t gid, 17524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const std::vector<gid_t>& supp_gids, 17624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const CapSet& capabilities, unsigned namespace_flags, 1771b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes const std::string& seclabel, 1781b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes const std::vector<std::string>& args) 1791b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes : name_(name), classname_(classname), flags_(flags), pid_(0), 1801b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes time_started_(0), time_crashed_(0), nr_crashed_(0), uid_(uid), gid_(gid), 18124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes supp_gids_(supp_gids), capabilities_(capabilities), 18224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes namespace_flags_(namespace_flags), seclabel_(seclabel), 18324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes ioprio_class_(IoSchedClass_NONE), ioprio_pri_(0), priority_(0), 18424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes oom_score_adjust_(-1000), args_(args) { 185bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.InitSingleTrigger("onrestart"); 186bac3299720623f4226bca103b26260052732ad30Tom Cherry} 187bac3299720623f4226bca103b26260052732ad30Tom Cherry 188bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::NotifyStateChange(const std::string& new_state) const { 189bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_EXEC) != 0) { 190bac3299720623f4226bca103b26260052732ad30Tom Cherry // 'exec' commands don't have properties tracking their state. 191bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 192bac3299720623f4226bca103b26260052732ad30Tom Cherry } 193bac3299720623f4226bca103b26260052732ad30Tom Cherry 194b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string prop_name = StringPrintf("init.svc.%s", name_.c_str()); 195bac3299720623f4226bca103b26260052732ad30Tom Cherry if (prop_name.length() >= PROP_NAME_MAX) { 196bac3299720623f4226bca103b26260052732ad30Tom Cherry // If the property name would be too long, we can't set it. 197f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "Property name \"init.svc." << name_ << "\" too long; not setting to " << new_state; 198bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 199bac3299720623f4226bca103b26260052732ad30Tom Cherry } 200bac3299720623f4226bca103b26260052732ad30Tom Cherry 201bac3299720623f4226bca103b26260052732ad30Tom Cherry property_set(prop_name.c_str(), new_state.c_str()); 202bac3299720623f4226bca103b26260052732ad30Tom Cherry} 203bac3299720623f4226bca103b26260052732ad30Tom Cherry 204ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughesvoid Service::KillProcessGroup(int signal) { 2051e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes LOG(INFO) << "Sending signal " << signal 2061e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes << " to service '" << name_ 2071e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes << "' (pid " << pid_ << ") process group..."; 2081e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes if (killProcessGroup(uid_, pid_, signal) == -1) { 2091e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes PLOG(ERROR) << "killProcessGroup(" << uid_ << ", " << pid_ << ", " << signal << ") failed"; 2101e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes } 2111e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes if (kill(-pid_, signal) == -1) { 2121e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes PLOG(ERROR) << "kill(" << pid_ << ", " << signal << ") failed"; 2131e73024653d962b769387dd4c9ff544b6c8b7cc9Elliott Hughes } 214ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes} 215ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 216344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesvoid Service::CreateSockets(const std::string& context) { 217344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes for (const auto& si : sockets_) { 218344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes int socket_type = ((si.type == "stream" ? SOCK_STREAM : 219344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes (si.type == "dgram" ? SOCK_DGRAM : 220344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes SOCK_SEQPACKET))); 221344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes const char* socketcon = !si.socketcon.empty() ? si.socketcon.c_str() : context.c_str(); 222344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 223344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes int s = create_socket(si.name.c_str(), socket_type, si.perm, si.uid, si.gid, socketcon); 224344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (s >= 0) { 225344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PublishSocket(si.name, s); 226344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 227344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 228344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 229344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 230344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesvoid Service::SetProcessAttributes() { 23124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes // Keep capabilites on uid change. 23224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any() && uid_) { 23324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (prctl(PR_SET_SECUREBITS, SECBIT_KEEP_CAPS | SECBIT_KEEP_CAPS_LOCKED) != 0) { 23424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes PLOG(FATAL) << "prtcl(PR_SET_KEEPCAPS) failed for " << name_; 23524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 23624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 23724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 238e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes // TODO: work out why this fails for `console` then upgrade to FATAL. 239e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes if (setpgid(0, getpid()) == -1) PLOG(ERROR) << "setpgid failed for " << name_; 240344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 241344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (gid_) { 242344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setgid(gid_) != 0) { 243e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setgid failed for " << name_; 244344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 245344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 24680960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich if (setgroups(supp_gids_.size(), &supp_gids_[0]) != 0) { 24780960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich PLOG(FATAL) << "setgroups failed for " << name_; 248344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 249344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (uid_) { 250344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setuid(uid_) != 0) { 251e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setuid failed for " << name_; 252344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 253344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 254344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!seclabel_.empty()) { 255344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setexeccon(seclabel_.c_str()) < 0) { 256e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "cannot setexeccon('" << seclabel_ << "') for " << name_; 257344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 258344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 259344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (priority_ != 0) { 260344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setpriority(PRIO_PROCESS, 0, priority_) != 0) { 261e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setpriority failed for " << name_; 262344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 263344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 26424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any()) { 26524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (!SetCapsForExec(capabilities_)) { 26624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes LOG(FATAL) << "cannot set capabilities for " << name_; 26724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 26824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 269344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 270344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 271bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::Reap() { 272bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_ONESHOT) || (flags_ & SVC_RESTART)) { 273ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 274bac3299720623f4226bca103b26260052732ad30Tom Cherry } 275bac3299720623f4226bca103b26260052732ad30Tom Cherry 276bac3299720623f4226bca103b26260052732ad30Tom Cherry // Remove any sockets we may have created. 277bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& si : sockets_) { 278b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string tmp = StringPrintf(ANDROID_SOCKET_DIR "/%s", si.name.c_str()); 279bac3299720623f4226bca103b26260052732ad30Tom Cherry unlink(tmp.c_str()); 280bac3299720623f4226bca103b26260052732ad30Tom Cherry } 281bac3299720623f4226bca103b26260052732ad30Tom Cherry 282bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_EXEC) { 283f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << "SVC_EXEC pid " << pid_ << " finished..."; 284bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 285bac3299720623f4226bca103b26260052732ad30Tom Cherry } 286bac3299720623f4226bca103b26260052732ad30Tom Cherry 287bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 288bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RUNNING); 289bac3299720623f4226bca103b26260052732ad30Tom Cherry 290bac3299720623f4226bca103b26260052732ad30Tom Cherry // Oneshot processes go into the disabled state on exit, 291bac3299720623f4226bca103b26260052732ad30Tom Cherry // except when manually restarted. 292bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_ONESHOT) && !(flags_ & SVC_RESTART)) { 293bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 294bac3299720623f4226bca103b26260052732ad30Tom Cherry } 295bac3299720623f4226bca103b26260052732ad30Tom Cherry 296bac3299720623f4226bca103b26260052732ad30Tom Cherry // Disabled and reset processes do not get restarted automatically. 297bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & (SVC_DISABLED | SVC_RESET)) { 298bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 299bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 300bac3299720623f4226bca103b26260052732ad30Tom Cherry } 301bac3299720623f4226bca103b26260052732ad30Tom Cherry 302bac3299720623f4226bca103b26260052732ad30Tom Cherry time_t now = gettime(); 303bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_CRITICAL) && !(flags_ & SVC_RESTART)) { 304bac3299720623f4226bca103b26260052732ad30Tom Cherry if (time_crashed_ + CRITICAL_CRASH_WINDOW >= now) { 305bac3299720623f4226bca103b26260052732ad30Tom Cherry if (++nr_crashed_ > CRITICAL_CRASH_THRESHOLD) { 306f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "critical process '" << name_ << "' exited " 307f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << CRITICAL_CRASH_THRESHOLD << " times in " 308f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << (CRITICAL_CRASH_WINDOW / 60) << " minutes; " 309f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << "rebooting into recovery mode"; 310bac3299720623f4226bca103b26260052732ad30Tom Cherry android_reboot(ANDROID_RB_RESTART2, 0, "recovery"); 311bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 312bac3299720623f4226bca103b26260052732ad30Tom Cherry } 313bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 314bac3299720623f4226bca103b26260052732ad30Tom Cherry time_crashed_ = now; 315bac3299720623f4226bca103b26260052732ad30Tom Cherry nr_crashed_ = 1; 316bac3299720623f4226bca103b26260052732ad30Tom Cherry } 317bac3299720623f4226bca103b26260052732ad30Tom Cherry } 318bac3299720623f4226bca103b26260052732ad30Tom Cherry 319bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RESTART); 320bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RESTARTING; 321bac3299720623f4226bca103b26260052732ad30Tom Cherry 322bac3299720623f4226bca103b26260052732ad30Tom Cherry // Execute all onrestart commands for this service. 323bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.ExecuteAllCommands(); 324bac3299720623f4226bca103b26260052732ad30Tom Cherry 325bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("restarting"); 326bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 327bac3299720623f4226bca103b26260052732ad30Tom Cherry} 328bac3299720623f4226bca103b26260052732ad30Tom Cherry 329bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::DumpState() const { 330f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << "service " << name_; 331f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << " class '" << classname_ << "'"; 332f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << " exec "<< android::base::Join(args_, " "); 333bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& si : sockets_) { 334f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << " socket " << si.name << " " << si.type << " " << std::oct << si.perm; 335bac3299720623f4226bca103b26260052732ad30Tom Cherry } 336bac3299720623f4226bca103b26260052732ad30Tom Cherry} 337bac3299720623f4226bca103b26260052732ad30Tom Cherry 33824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obesbool Service::ParseCapabilities(const std::vector<std::string>& args, std::string* err) { 33924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_ = 0; 34024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 34124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 34224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const std::string& arg = args[i]; 34324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes int cap = LookupCap(arg); 34424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (cap == -1) { 34524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes *err = StringPrintf("invalid capability '%s'", arg.c_str()); 34624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes return false; 34724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 34824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_[cap] = true; 34924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 35024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes return true; 35124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes} 35224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 353177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseClass(const std::vector<std::string>& args, std::string* err) { 354b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry classname_ = args[1]; 355b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 356b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 357bac3299720623f4226bca103b26260052732ad30Tom Cherry 358177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseConsole(const std::vector<std::string>& args, std::string* err) { 359b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CONSOLE; 36070daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = args.size() > 1 ? "/dev/" + args[1] : ""; 361b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 362b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 363bac3299720623f4226bca103b26260052732ad30Tom Cherry 364177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseCritical(const std::vector<std::string>& args, std::string* err) { 365b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CRITICAL; 366b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 367b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 368bac3299720623f4226bca103b26260052732ad30Tom Cherry 369177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseDisabled(const std::vector<std::string>& args, std::string* err) { 370b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_DISABLED; 371b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_RC_DISABLED; 372b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 373b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 374bac3299720623f4226bca103b26260052732ad30Tom Cherry 375177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseGroup(const std::vector<std::string>& args, std::string* err) { 376b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry gid_ = decode_uid(args[1].c_str()); 377b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t n = 2; n < args.size(); n++) { 378b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry supp_gids_.emplace_back(decode_uid(args[n].c_str())); 379b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 380b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 381b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 382bac3299720623f4226bca103b26260052732ad30Tom Cherry 383177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParsePriority(const std::vector<std::string>& args, std::string* err) { 384da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes priority_ = 0; 385da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &priority_, 386da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes static_cast<int>(ANDROID_PRIORITY_LOWEST), 387da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes static_cast<int>(ANDROID_PRIORITY_HIGHEST))) { 388081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv *err = StringPrintf("process priority value must be range %d - %d", 389081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv ANDROID_PRIORITY_HIGHEST, ANDROID_PRIORITY_LOWEST); 390081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv return false; 391081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv } 392081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv return true; 393081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv} 394081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv 395177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseIoprio(const std::vector<std::string>& args, std::string* err) { 396da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[2], &ioprio_pri_, 0, 7)) { 397b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "priority value must be range 0 - 7"; 398b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 399b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 400b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 401b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args[1] == "rt") { 402b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_RT; 403b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "be") { 404b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_BE; 405b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "idle") { 406b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_IDLE; 407b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else { 408b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "ioprio option usage: ioprio <rt|be|idle> <0-7>"; 409b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 410bac3299720623f4226bca103b26260052732ad30Tom Cherry } 411bac3299720623f4226bca103b26260052732ad30Tom Cherry 412b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 413b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 414bac3299720623f4226bca103b26260052732ad30Tom Cherry 415177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseKeycodes(const std::vector<std::string>& args, std::string* err) { 416b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t i = 1; i < args.size(); i++) { 417da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes int code; 418da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (ParseInt(args[i], &code)) { 419da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes keycodes_.emplace_back(code); 420da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } else { 421da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes LOG(WARNING) << "ignoring invalid keycode: " << args[i]; 422da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } 423bac3299720623f4226bca103b26260052732ad30Tom Cherry } 424b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 425b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 426b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 427177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseOneshot(const std::vector<std::string>& args, std::string* err) { 428b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_ONESHOT; 429b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 430b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 431b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 432177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseOnrestart(const std::vector<std::string>& args, std::string* err) { 433b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 1, args.end()); 434b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry onrestart_.AddCommand(str_args, "", 0, err); 435b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 436b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 437bac3299720623f4226bca103b26260052732ad30Tom Cherry 438177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseNamespace(const std::vector<std::string>& args, std::string* err) { 4391b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 4401b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (args[i] == "pid") { 4411b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWPID; 4421b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespaces require mount namespaces. 4431b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 4441b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else if (args[i] == "mnt") { 4451b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 4461b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 4471b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes *err = "namespace must be 'pid' or 'mnt'"; 4481b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes return false; 4491b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 4501b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 4511b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes return true; 4521b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 4531b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 454310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissenbool Service::ParseOomScoreAdjust(const std::vector<std::string>& args, std::string* err) { 455da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &oom_score_adjust_, -1000, 1000)) { 456310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen *err = "oom_score_adjust value must be in range -1000 - +1000"; 457310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen return false; 458310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 459310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen return true; 460310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen} 461310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 462177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSeclabel(const std::vector<std::string>& args, std::string* err) { 463b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry seclabel_ = args[1]; 464b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 465b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 466b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 467177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSetenv(const std::vector<std::string>& args, std::string* err) { 468b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry envvars_.emplace_back(args[1], args[2]); 469b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 470b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 471b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 472b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry/* name type perm [ uid gid context ] */ 473177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseSocket(const std::vector<std::string>& args, std::string* err) { 474b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args[2] != "dgram" && args[2] != "stream" && args[2] != "seqpacket") { 475b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "socket type must be 'dgram', 'stream' or 'seqpacket'"; 476bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 477bac3299720623f4226bca103b26260052732ad30Tom Cherry } 478b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 479da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes int perm = std::strtoul(args[3].c_str(), 0, 8); 480b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry uid_t uid = args.size() > 4 ? decode_uid(args[4].c_str()) : 0; 481b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry gid_t gid = args.size() > 5 ? decode_uid(args[5].c_str()) : 0; 482b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string socketcon = args.size() > 6 ? args[6] : ""; 483b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 484b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry sockets_.emplace_back(args[1], args[2], uid, gid, perm, socketcon); 485bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 486bac3299720623f4226bca103b26260052732ad30Tom Cherry} 487bac3299720623f4226bca103b26260052732ad30Tom Cherry 488177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseUser(const std::vector<std::string>& args, std::string* err) { 489b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry uid_ = decode_uid(args[1].c_str()); 490b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 491b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 492b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 493177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseWritepid(const std::vector<std::string>& args, std::string* err) { 494b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry writepid_files_.assign(args.begin() + 1, args.end()); 495b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 496b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 497b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 498177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesclass Service::OptionParserMap : public KeywordMap<OptionParser> { 499b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrypublic: 500177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes OptionParserMap() { 501b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 502b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryprivate: 503b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry Map& map() const override; 504b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry}; 505b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 506177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli ObesService::OptionParserMap::Map& Service::OptionParserMap::map() const { 507b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry constexpr std::size_t kMax = std::numeric_limits<std::size_t>::max(); 508177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const Map option_parsers = { 50924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {"capabilities", 51024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {1, kMax, &Service::ParseCapabilities}}, 511177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"class", {1, 1, &Service::ParseClass}}, 512177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"console", {0, 1, &Service::ParseConsole}}, 513177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"critical", {0, 0, &Service::ParseCritical}}, 514177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"disabled", {0, 0, &Service::ParseDisabled}}, 515177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"group", {1, NR_SVC_SUPP_GIDS + 1, &Service::ParseGroup}}, 516177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"ioprio", {2, 2, &Service::ParseIoprio}}, 517177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"priority", {1, 1, &Service::ParsePriority}}, 518177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"keycodes", {1, kMax, &Service::ParseKeycodes}}, 519177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"oneshot", {0, 0, &Service::ParseOneshot}}, 520177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"onrestart", {1, kMax, &Service::ParseOnrestart}}, 521310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {"oom_score_adjust", 522310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {1, 1, &Service::ParseOomScoreAdjust}}, 523177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"namespace", {1, 2, &Service::ParseNamespace}}, 524177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"seclabel", {1, 1, &Service::ParseSeclabel}}, 525177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"setenv", {2, 2, &Service::ParseSetenv}}, 526177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"socket", {3, 6, &Service::ParseSocket}}, 527177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"user", {1, 1, &Service::ParseUser}}, 528177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"writepid", {1, kMax, &Service::ParseWritepid}}, 529b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry }; 530177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return option_parsers; 531b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 532b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 533177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesbool Service::ParseLine(const std::vector<std::string>& args, std::string* err) { 534b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args.empty()) { 535b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "option needed, but not provided"; 536b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 537b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 538b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 539177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const OptionParserMap parser_map; 540177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes auto parser = parser_map.FindFunction(args[0], args.size() - 1, err); 541b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 542177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes if (!parser) { 543b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 544b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 545b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 546177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return (this->*parser)(args, err); 547b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 548b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 549bdeac39a42c1b9c7195ada1c30fe12f94314490fElliott Hughesbool Service::Start() { 550bac3299720623f4226bca103b26260052732ad30Tom Cherry // Starting a service removes it from the disabled or reset state and 551bac3299720623f4226bca103b26260052732ad30Tom Cherry // immediately takes it out of the restarting state if it was in there. 552bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~(SVC_DISABLED|SVC_RESTARTING|SVC_RESET|SVC_RESTART|SVC_DISABLED_START)); 553bac3299720623f4226bca103b26260052732ad30Tom Cherry time_started_ = 0; 554bac3299720623f4226bca103b26260052732ad30Tom Cherry 555bac3299720623f4226bca103b26260052732ad30Tom Cherry // Running processes require no additional work --- if they're in the 556bac3299720623f4226bca103b26260052732ad30Tom Cherry // process of exiting, we've ensured that they will immediately restart 557bac3299720623f4226bca103b26260052732ad30Tom Cherry // on exit, unless they are ONESHOT. 558bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 559bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 560bac3299720623f4226bca103b26260052732ad30Tom Cherry } 561bac3299720623f4226bca103b26260052732ad30Tom Cherry 562bac3299720623f4226bca103b26260052732ad30Tom Cherry bool needs_console = (flags_ & SVC_CONSOLE); 56370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (needs_console) { 56470daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (console_.empty()) { 56570daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = default_console; 56670daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 56770daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman 56870daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman bool have_console = (open(console_.c_str(), O_RDWR | O_CLOEXEC) != -1); 56970daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (!have_console) { 570f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "service '" << name_ << "' couldn't open console '" << console_ << "'"; 57170daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman flags_ |= SVC_DISABLED; 57270daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman return false; 57370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 574bac3299720623f4226bca103b26260052732ad30Tom Cherry } 575bac3299720623f4226bca103b26260052732ad30Tom Cherry 576bac3299720623f4226bca103b26260052732ad30Tom Cherry struct stat sb; 577bac3299720623f4226bca103b26260052732ad30Tom Cherry if (stat(args_[0].c_str(), &sb) == -1) { 578f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "cannot find '" << args_[0] << "', disabling '" << name_ << "'"; 579bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 580bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 581bac3299720623f4226bca103b26260052732ad30Tom Cherry } 582bac3299720623f4226bca103b26260052732ad30Tom Cherry 583bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string scon; 584bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!seclabel_.empty()) { 585bac3299720623f4226bca103b26260052732ad30Tom Cherry scon = seclabel_; 586bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 587344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(INFO) << "computing context for service '" << name_ << "'"; 588344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes scon = ComputeContextFromExecutable(name_, args_[0]); 589344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (scon == "") { 590bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 591bac3299720623f4226bca103b26260052732ad30Tom Cherry } 592bac3299720623f4226bca103b26260052732ad30Tom Cherry } 593bac3299720623f4226bca103b26260052732ad30Tom Cherry 594a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << "starting service '" << name_ << "'..."; 595bac3299720623f4226bca103b26260052732ad30Tom Cherry 5961b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t pid = -1; 5971b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_) { 598344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes pid = clone(nullptr, nullptr, namespace_flags_ | SIGCHLD, nullptr); 5991b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 6001b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid = fork(); 6011b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 6021b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 603bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid == 0) { 604bac3299720623f4226bca103b26260052732ad30Tom Cherry umask(077); 605bac3299720623f4226bca103b26260052732ad30Tom Cherry 6061b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_ & CLONE_NEWPID) { 6071b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This will fork again to run an init process inside the PID 6081b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // namespace. 6091b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes SetUpPidNamespace(name_); 6101b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 6111b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 612bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& ei : envvars_) { 613bac3299720623f4226bca103b26260052732ad30Tom Cherry add_environment(ei.name.c_str(), ei.value.c_str()); 614bac3299720623f4226bca103b26260052732ad30Tom Cherry } 615bac3299720623f4226bca103b26260052732ad30Tom Cherry 616344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes CreateSockets(scon); 617bac3299720623f4226bca103b26260052732ad30Tom Cherry 618b702b46f688bc3ba7f8dc2d35c6eb25482366c4cAnestis Bechtsoudis std::string pid_str = StringPrintf("%d", getpid()); 619bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& file : writepid_files_) { 620b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!WriteStringToFile(pid_str, file)) { 621f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "couldn't write " << pid_str << " to " << file; 622bac3299720623f4226bca103b26260052732ad30Tom Cherry } 623bac3299720623f4226bca103b26260052732ad30Tom Cherry } 624bac3299720623f4226bca103b26260052732ad30Tom Cherry 625bac3299720623f4226bca103b26260052732ad30Tom Cherry if (ioprio_class_ != IoSchedClass_NONE) { 626bac3299720623f4226bca103b26260052732ad30Tom Cherry if (android_set_ioprio(getpid(), ioprio_class_, ioprio_pri_)) { 627344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "failed to set pid " << getpid() 628f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << " ioprio=" << ioprio_class_ << "," << ioprio_pri_; 629bac3299720623f4226bca103b26260052732ad30Tom Cherry } 630bac3299720623f4226bca103b26260052732ad30Tom Cherry } 631bac3299720623f4226bca103b26260052732ad30Tom Cherry 632bac3299720623f4226bca103b26260052732ad30Tom Cherry if (needs_console) { 633bac3299720623f4226bca103b26260052732ad30Tom Cherry setsid(); 634bac3299720623f4226bca103b26260052732ad30Tom Cherry OpenConsole(); 635bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 636bac3299720623f4226bca103b26260052732ad30Tom Cherry ZapStdio(); 637bac3299720623f4226bca103b26260052732ad30Tom Cherry } 638bac3299720623f4226bca103b26260052732ad30Tom Cherry 639344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // As requested, set our gid, supplemental gids, uid, context, and 640344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // priority. Aborts on failure. 641344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes SetProcessAttributes(); 642bac3299720623f4226bca103b26260052732ad30Tom Cherry 643bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<char*> strs; 644344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes ExpandArgs(args_, &strs); 645bac3536cc949b3af0185e7b8f9b18318b37ac8b0Tom Cherry if (execve(strs[0], (char**) &strs[0], (char**) ENV) < 0) { 646f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "cannot execve('" << strs[0] << "')"; 647bac3299720623f4226bca103b26260052732ad30Tom Cherry } 648bac3299720623f4226bca103b26260052732ad30Tom Cherry 649bac3299720623f4226bca103b26260052732ad30Tom Cherry _exit(127); 650bac3299720623f4226bca103b26260052732ad30Tom Cherry } 651bac3299720623f4226bca103b26260052732ad30Tom Cherry 652bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid < 0) { 653f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "failed to fork for '" << name_ << "'"; 654bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 655bac3299720623f4226bca103b26260052732ad30Tom Cherry return false; 656bac3299720623f4226bca103b26260052732ad30Tom Cherry } 657bac3299720623f4226bca103b26260052732ad30Tom Cherry 658310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (oom_score_adjust_ != -1000) { 659310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen std::string oom_str = StringPrintf("%d", oom_score_adjust_); 660310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen std::string oom_file = StringPrintf("/proc/%d/oom_score_adj", pid); 661310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (!WriteStringToFile(oom_str, oom_file)) { 662310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen PLOG(ERROR) << "couldn't write oom_score_adj: " << strerror(errno); 663310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 664310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 665310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 666bac3299720623f4226bca103b26260052732ad30Tom Cherry time_started_ = gettime(); 667bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = pid; 668bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RUNNING; 669ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 670ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes errno = -createProcessGroup(uid_, pid_); 671ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes if (errno != 0) { 672344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "createProcessGroup(" << uid_ << ", " << pid_ << ") failed for service '" 673344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes << name_ << "'"; 674ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes } 675bac3299720623f4226bca103b26260052732ad30Tom Cherry 676bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_EXEC) != 0) { 677344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(INFO) << android::base::StringPrintf( 678344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes "SVC_EXEC pid %d (uid %d gid %d+%zu context %s) started; waiting...", pid_, uid_, gid_, 679344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes supp_gids_.size(), !seclabel_.empty() ? seclabel_.c_str() : "default"); 680bac3299720623f4226bca103b26260052732ad30Tom Cherry } 681bac3299720623f4226bca103b26260052732ad30Tom Cherry 682bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("running"); 683bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 684bac3299720623f4226bca103b26260052732ad30Tom Cherry} 685bac3299720623f4226bca103b26260052732ad30Tom Cherry 686bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::StartIfNotDisabled() { 687bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_DISABLED)) { 688bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 689bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 690bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED_START; 691bac3299720623f4226bca103b26260052732ad30Tom Cherry } 692bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 693bac3299720623f4226bca103b26260052732ad30Tom Cherry} 694bac3299720623f4226bca103b26260052732ad30Tom Cherry 695bac3299720623f4226bca103b26260052732ad30Tom Cherrybool Service::Enable() { 696bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_DISABLED | SVC_RC_DISABLED); 697bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_DISABLED_START) { 698bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 699bac3299720623f4226bca103b26260052732ad30Tom Cherry } 700bac3299720623f4226bca103b26260052732ad30Tom Cherry return true; 701bac3299720623f4226bca103b26260052732ad30Tom Cherry} 702bac3299720623f4226bca103b26260052732ad30Tom Cherry 703bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Reset() { 704bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESET); 705bac3299720623f4226bca103b26260052732ad30Tom Cherry} 706bac3299720623f4226bca103b26260052732ad30Tom Cherry 707bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Stop() { 708bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_DISABLED); 709bac3299720623f4226bca103b26260052732ad30Tom Cherry} 710bac3299720623f4226bca103b26260052732ad30Tom Cherry 711b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETvoid Service::Terminate() { 712b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 713b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ |= SVC_DISABLED; 714b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (pid_) { 715ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGTERM); 716b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET NotifyStateChange("stopping"); 717b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 718b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 719b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 720bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Restart() { 721bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 722bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Stop, wait, then start the service. */ 723bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESTART); 724bac3299720623f4226bca103b26260052732ad30Tom Cherry } else if (!(flags_ & SVC_RESTARTING)) { 725bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Just start the service since it's not running. */ 726bac3299720623f4226bca103b26260052732ad30Tom Cherry Start(); 727bac3299720623f4226bca103b26260052732ad30Tom Cherry } /* else: Service is restarting anyways. */ 728bac3299720623f4226bca103b26260052732ad30Tom Cherry} 729bac3299720623f4226bca103b26260052732ad30Tom Cherry 730bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::RestartIfNeeded(time_t& process_needs_restart) { 731bac3299720623f4226bca103b26260052732ad30Tom Cherry time_t next_start_time = time_started_ + 5; 732bac3299720623f4226bca103b26260052732ad30Tom Cherry 733bac3299720623f4226bca103b26260052732ad30Tom Cherry if (next_start_time <= gettime()) { 734bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RESTARTING); 735bac3299720623f4226bca103b26260052732ad30Tom Cherry Start(); 736bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 737bac3299720623f4226bca103b26260052732ad30Tom Cherry } 738bac3299720623f4226bca103b26260052732ad30Tom Cherry 739bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((next_start_time < process_needs_restart) || 740bac3299720623f4226bca103b26260052732ad30Tom Cherry (process_needs_restart == 0)) { 741bac3299720623f4226bca103b26260052732ad30Tom Cherry process_needs_restart = next_start_time; 742bac3299720623f4226bca103b26260052732ad30Tom Cherry } 743bac3299720623f4226bca103b26260052732ad30Tom Cherry} 744bac3299720623f4226bca103b26260052732ad30Tom Cherry 745ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes// The how field should be either SVC_DISABLED, SVC_RESET, or SVC_RESTART. 746bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::StopOrReset(int how) { 747ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // The service is still SVC_RUNNING until its process exits, but if it has 748ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // already exited it shoudn't attempt a restart yet. 749bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 750bac3299720623f4226bca103b26260052732ad30Tom Cherry 751bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((how != SVC_DISABLED) && (how != SVC_RESET) && (how != SVC_RESTART)) { 752ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // An illegal flag: default to SVC_DISABLED. 753bac3299720623f4226bca103b26260052732ad30Tom Cherry how = SVC_DISABLED; 754bac3299720623f4226bca103b26260052732ad30Tom Cherry } 755ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 756ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // If the service has not yet started, prevent it from auto-starting with its class. 757bac3299720623f4226bca103b26260052732ad30Tom Cherry if (how == SVC_RESET) { 758bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= (flags_ & SVC_RC_DISABLED) ? SVC_DISABLED : SVC_RESET; 759bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 760bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= how; 761bac3299720623f4226bca103b26260052732ad30Tom Cherry } 762bac3299720623f4226bca103b26260052732ad30Tom Cherry 763bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid_) { 764ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 765bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopping"); 766bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 767bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 768bac3299720623f4226bca103b26260052732ad30Tom Cherry } 769bac3299720623f4226bca103b26260052732ad30Tom Cherry} 770bac3299720623f4226bca103b26260052732ad30Tom Cherry 771bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::ZapStdio() const { 772bac3299720623f4226bca103b26260052732ad30Tom Cherry int fd; 773bac3299720623f4226bca103b26260052732ad30Tom Cherry fd = open("/dev/null", O_RDWR); 774bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 775bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 776bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 777bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 778bac3299720623f4226bca103b26260052732ad30Tom Cherry} 779bac3299720623f4226bca103b26260052732ad30Tom Cherry 780bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::OpenConsole() const { 78170daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman int fd = open(console_.c_str(), O_RDWR); 78270daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (fd == -1) fd = open("/dev/null", O_RDWR); 783bac3299720623f4226bca103b26260052732ad30Tom Cherry ioctl(fd, TIOCSCTTY, 0); 784bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 785bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 786bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 787bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 788bac3299720623f4226bca103b26260052732ad30Tom Cherry} 789bac3299720623f4226bca103b26260052732ad30Tom Cherry 790bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::PublishSocket(const std::string& name, int fd) const { 791b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string key = StringPrintf(ANDROID_SOCKET_ENV_PREFIX "%s", name.c_str()); 792b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string val = StringPrintf("%d", fd); 793bac3299720623f4226bca103b26260052732ad30Tom Cherry add_environment(key.c_str(), val.c_str()); 794bac3299720623f4226bca103b26260052732ad30Tom Cherry 795bac3299720623f4226bca103b26260052732ad30Tom Cherry /* make sure we don't close-on-exec */ 796bac3299720623f4226bca103b26260052732ad30Tom Cherry fcntl(fd, F_SETFD, 0); 797bac3299720623f4226bca103b26260052732ad30Tom Cherry} 798bac3299720623f4226bca103b26260052732ad30Tom Cherry 799bac3299720623f4226bca103b26260052732ad30Tom Cherryint ServiceManager::exec_count_ = 0; 800bac3299720623f4226bca103b26260052732ad30Tom Cherry 801bac3299720623f4226bca103b26260052732ad30Tom CherryServiceManager::ServiceManager() { 802bac3299720623f4226bca103b26260052732ad30Tom Cherry} 803bac3299720623f4226bca103b26260052732ad30Tom Cherry 804bac3299720623f4226bca103b26260052732ad30Tom CherryServiceManager& ServiceManager::GetInstance() { 805bac3299720623f4226bca103b26260052732ad30Tom Cherry static ServiceManager instance; 806bac3299720623f4226bca103b26260052732ad30Tom Cherry return instance; 807bac3299720623f4226bca103b26260052732ad30Tom Cherry} 808bac3299720623f4226bca103b26260052732ad30Tom Cherry 809b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceManager::AddService(std::unique_ptr<Service> service) { 810b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry Service* old_service = FindServiceByName(service->name()); 811b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (old_service) { 812f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "ignored duplicate definition of service '" << service->name() << "'"; 813b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return; 814bac3299720623f4226bca103b26260052732ad30Tom Cherry } 815b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry services_.emplace_back(std::move(service)); 816bac3299720623f4226bca103b26260052732ad30Tom Cherry} 817bac3299720623f4226bca103b26260052732ad30Tom Cherry 818bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::MakeExecOneshotService(const std::vector<std::string>& args) { 819bac3299720623f4226bca103b26260052732ad30Tom Cherry // Parse the arguments: exec [SECLABEL [UID [GID]*] --] COMMAND ARGS... 820bac3299720623f4226bca103b26260052732ad30Tom Cherry // SECLABEL can be a - to denote default 821bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t command_arg = 1; 822bac3299720623f4226bca103b26260052732ad30Tom Cherry for (std::size_t i = 1; i < args.size(); ++i) { 823bac3299720623f4226bca103b26260052732ad30Tom Cherry if (args[i] == "--") { 824bac3299720623f4226bca103b26260052732ad30Tom Cherry command_arg = i + 1; 825bac3299720623f4226bca103b26260052732ad30Tom Cherry break; 826bac3299720623f4226bca103b26260052732ad30Tom Cherry } 827bac3299720623f4226bca103b26260052732ad30Tom Cherry } 828bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4 + NR_SVC_SUPP_GIDS) { 829f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called with too many supplementary group ids"; 830bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 831bac3299720623f4226bca103b26260052732ad30Tom Cherry } 832bac3299720623f4226bca103b26260052732ad30Tom Cherry 833bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg >= args.size()) { 834f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called without command"; 835bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 836bac3299720623f4226bca103b26260052732ad30Tom Cherry } 837bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<std::string> str_args(args.begin() + command_arg, args.end()); 838bac3299720623f4226bca103b26260052732ad30Tom Cherry 839bac3299720623f4226bca103b26260052732ad30Tom Cherry exec_count_++; 840b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string name = StringPrintf("exec %d (%s)", exec_count_, str_args[0].c_str()); 841bac3299720623f4226bca103b26260052732ad30Tom Cherry unsigned flags = SVC_EXEC | SVC_ONESHOT; 84224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes CapSet no_capabilities; 8431b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes unsigned namespace_flags = 0; 844bac3299720623f4226bca103b26260052732ad30Tom Cherry 845bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string seclabel = ""; 846bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 2 && args[1] != "-") { 847bac3299720623f4226bca103b26260052732ad30Tom Cherry seclabel = args[1]; 848bac3299720623f4226bca103b26260052732ad30Tom Cherry } 849bac3299720623f4226bca103b26260052732ad30Tom Cherry uid_t uid = 0; 850bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 3) { 851bac3299720623f4226bca103b26260052732ad30Tom Cherry uid = decode_uid(args[2].c_str()); 852bac3299720623f4226bca103b26260052732ad30Tom Cherry } 853bac3299720623f4226bca103b26260052732ad30Tom Cherry gid_t gid = 0; 854bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<gid_t> supp_gids; 855bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4) { 856bac3299720623f4226bca103b26260052732ad30Tom Cherry gid = decode_uid(args[3].c_str()); 857bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t nr_supp_gids = command_arg - 1 /* -- */ - 4 /* exec SECLABEL UID GID */; 858bac3299720623f4226bca103b26260052732ad30Tom Cherry for (size_t i = 0; i < nr_supp_gids; ++i) { 859bac3299720623f4226bca103b26260052732ad30Tom Cherry supp_gids.push_back(decode_uid(args[4 + i].c_str())); 860bac3299720623f4226bca103b26260052732ad30Tom Cherry } 861bac3299720623f4226bca103b26260052732ad30Tom Cherry } 862bac3299720623f4226bca103b26260052732ad30Tom Cherry 86324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes std::unique_ptr<Service> svc_p(new Service(name, "default", flags, uid, gid, supp_gids, 86424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes no_capabilities, namespace_flags, seclabel, 86524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes str_args)); 866bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!svc_p) { 867f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "Couldn't allocate service for exec of '" << str_args[0] << "'"; 868bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 869bac3299720623f4226bca103b26260052732ad30Tom Cherry } 870bac3299720623f4226bca103b26260052732ad30Tom Cherry Service* svc = svc_p.get(); 871bac3299720623f4226bca103b26260052732ad30Tom Cherry services_.push_back(std::move(svc_p)); 872bac3299720623f4226bca103b26260052732ad30Tom Cherry 873bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc; 874bac3299720623f4226bca103b26260052732ad30Tom Cherry} 875bac3299720623f4226bca103b26260052732ad30Tom Cherry 876bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::FindServiceByName(const std::string& name) const { 877bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc = std::find_if(services_.begin(), services_.end(), 878bac3299720623f4226bca103b26260052732ad30Tom Cherry [&name] (const std::unique_ptr<Service>& s) { 879bac3299720623f4226bca103b26260052732ad30Tom Cherry return name == s->name(); 880bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 881bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc != services_.end()) { 882bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc->get(); 883bac3299720623f4226bca103b26260052732ad30Tom Cherry } 884bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 885bac3299720623f4226bca103b26260052732ad30Tom Cherry} 886bac3299720623f4226bca103b26260052732ad30Tom Cherry 887bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::FindServiceByPid(pid_t pid) const { 888bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc = std::find_if(services_.begin(), services_.end(), 889bac3299720623f4226bca103b26260052732ad30Tom Cherry [&pid] (const std::unique_ptr<Service>& s) { 890bac3299720623f4226bca103b26260052732ad30Tom Cherry return s->pid() == pid; 891bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 892bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc != services_.end()) { 893bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc->get(); 894bac3299720623f4226bca103b26260052732ad30Tom Cherry } 895bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 896bac3299720623f4226bca103b26260052732ad30Tom Cherry} 897bac3299720623f4226bca103b26260052732ad30Tom Cherry 898bac3299720623f4226bca103b26260052732ad30Tom CherryService* ServiceManager::FindServiceByKeychord(int keychord_id) const { 899bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc = std::find_if(services_.begin(), services_.end(), 900bac3299720623f4226bca103b26260052732ad30Tom Cherry [&keychord_id] (const std::unique_ptr<Service>& s) { 901bac3299720623f4226bca103b26260052732ad30Tom Cherry return s->keychord_id() == keychord_id; 902bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 903bac3299720623f4226bca103b26260052732ad30Tom Cherry 904bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc != services_.end()) { 905bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc->get(); 906bac3299720623f4226bca103b26260052732ad30Tom Cherry } 907bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 908bac3299720623f4226bca103b26260052732ad30Tom Cherry} 909bac3299720623f4226bca103b26260052732ad30Tom Cherry 9108f7b9e3d39cdae8363816aa7bcbab0d79fd70ceaChih-Hung Hsiehvoid ServiceManager::ForEachService(const std::function<void(Service*)>& callback) const { 911bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& s : services_) { 912b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET callback(s.get()); 913bac3299720623f4226bca103b26260052732ad30Tom Cherry } 914bac3299720623f4226bca103b26260052732ad30Tom Cherry} 915bac3299720623f4226bca103b26260052732ad30Tom Cherry 916bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid ServiceManager::ForEachServiceInClass(const std::string& classname, 917bac3299720623f4226bca103b26260052732ad30Tom Cherry void (*func)(Service* svc)) const { 918bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& s : services_) { 919bac3299720623f4226bca103b26260052732ad30Tom Cherry if (classname == s->classname()) { 920bac3299720623f4226bca103b26260052732ad30Tom Cherry func(s.get()); 921bac3299720623f4226bca103b26260052732ad30Tom Cherry } 922bac3299720623f4226bca103b26260052732ad30Tom Cherry } 923bac3299720623f4226bca103b26260052732ad30Tom Cherry} 924bac3299720623f4226bca103b26260052732ad30Tom Cherry 925bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid ServiceManager::ForEachServiceWithFlags(unsigned matchflags, 926bac3299720623f4226bca103b26260052732ad30Tom Cherry void (*func)(Service* svc)) const { 927bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& s : services_) { 928bac3299720623f4226bca103b26260052732ad30Tom Cherry if (s->flags() & matchflags) { 929bac3299720623f4226bca103b26260052732ad30Tom Cherry func(s.get()); 930bac3299720623f4226bca103b26260052732ad30Tom Cherry } 931bac3299720623f4226bca103b26260052732ad30Tom Cherry } 932bac3299720623f4226bca103b26260052732ad30Tom Cherry} 933bac3299720623f4226bca103b26260052732ad30Tom Cherry 934b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceManager::RemoveService(const Service& svc) { 935bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc_it = std::find_if(services_.begin(), services_.end(), 936bac3299720623f4226bca103b26260052732ad30Tom Cherry [&svc] (const std::unique_ptr<Service>& s) { 937bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc.name() == s->name(); 938bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 939bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc_it == services_.end()) { 940bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 941bac3299720623f4226bca103b26260052732ad30Tom Cherry } 942bac3299720623f4226bca103b26260052732ad30Tom Cherry 943bac3299720623f4226bca103b26260052732ad30Tom Cherry services_.erase(svc_it); 944bac3299720623f4226bca103b26260052732ad30Tom Cherry} 945bac3299720623f4226bca103b26260052732ad30Tom Cherry 946b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceManager::DumpState() const { 947b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (const auto& s : services_) { 948b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry s->DumpState(); 949b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 950b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 951b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 952b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETbool ServiceManager::ReapOneProcess() { 953b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET int status; 954b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET pid_t pid = TEMP_FAILURE_RETRY(waitpid(-1, &status, WNOHANG)); 955b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (pid == 0) { 956b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return false; 957b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else if (pid == -1) { 958f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "waitpid failed"; 959b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return false; 960b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 961b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 962b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET Service* svc = FindServiceByPid(pid); 963b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 964b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET std::string name; 965b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (svc) { 966b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET name = android::base::StringPrintf("Service '%s' (pid %d)", 967b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET svc->name().c_str(), pid); 968b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else { 969b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET name = android::base::StringPrintf("Untracked pid %d", pid); 970b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 971b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 972b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (WIFEXITED(status)) { 973a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << name << " exited with status " << WEXITSTATUS(status); 974b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else if (WIFSIGNALED(status)) { 975a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << name << " killed by signal " << WTERMSIG(status); 976b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else if (WIFSTOPPED(status)) { 977a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << name << " stopped by signal " << WSTOPSIG(status); 978b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } else { 979a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << name << " state changed"; 980b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 981b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 982b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (!svc) { 983b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return true; 984b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 985b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 986b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (svc->Reap()) { 987b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET waiting_for_exec = false; 988b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET RemoveService(*svc); 989b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 990b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 991b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET return true; 992b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 993b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 994b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETvoid ServiceManager::ReapAnyOutstandingChildren() { 995b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET while (ReapOneProcess()) { 996b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 997b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 998b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 999b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::ParseSection(const std::vector<std::string>& args, 1000b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string* err) { 1001b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args.size() < 3) { 1002b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = "services must have a name and a program"; 1003b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 1004b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1005b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1006b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry const std::string& name = args[1]; 1007b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!IsValidName(name)) { 1008b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry *err = StringPrintf("invalid service name '%s'", name.c_str()); 1009b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return false; 1010b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1011b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1012b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 2, args.end()); 1013b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry service_ = std::make_unique<Service>(name, "default", str_args); 1014b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry return true; 1015b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1016b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1017b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::ParseLineSection(const std::vector<std::string>& args, 1018b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry const std::string& filename, int line, 1019b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::string* err) const { 1020177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return service_ ? service_->ParseLine(args, err) : false; 1021b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1022b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1023b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryvoid ServiceParser::EndSection() { 1024b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (service_) { 1025b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ServiceManager::GetInstance().AddService(std::move(service_)); 1026b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1027b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1028b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1029b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::IsValidName(const std::string& name) const { 1030f655480b48b75e0ec295a2468cf3dd22ccb92dddIliyan Malchev return is_legal_property_name("init.svc." + name); 1031bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1032