service.cpp revision 94fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62f
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> 40e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland#include <hidl-util/FQName.h> 41f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner#include <processgroup/processgroup.h> 423f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <selinux/selinux.h> 433f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <system/thread_defs.h> 44f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner 45bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "init.h" 46bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "property_service.h" 477ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry#include "rlimit_parser.h" 48bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "util.h" 49bac3299720623f4226bca103b26260052732ad30Tom Cherry 50e78ea77f6992013b16fd57c07548b53129cdd12fJames Hawkinsusing android::base::boot_clock; 5181f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::GetProperty; 5281f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::Join; 538d13d808a5634701c55276796683857ac2d5c99aTom Cherryusing android::base::make_scope_guard; 54da46b392f10d2809b5696632f67485f272ec5698Elliott Hughesusing android::base::ParseInt; 5581f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::StartsWith; 56b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::StringPrintf; 57b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::WriteStringToFile; 58b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 5981f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherrynamespace android { 6081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherrynamespace init { 6181f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry 6276af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherrystatic Result<std::string> ComputeContextFromExecutable(std::string& service_name, 6376af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry const std::string& service_path) { 64344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::string computed_context; 65344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 66344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_con = nullptr; 67344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_filecon = nullptr; 68344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 69344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getcon(&raw_con) == -1) { 7076af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Error() << "Could not get security context"; 71344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 72344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::unique_ptr<char> mycon(raw_con); 73344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 74344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getfilecon(service_path.c_str(), &raw_filecon) == -1) { 7576af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Error() << "Could not get file context"; 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()) { 871ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich return Error() << "File " << service_path << "(labeled \"" << filecon.get() 881ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich << "\") has incorrect label or no domain transition from " << mycon.get() 891ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich << " to another SELinux domain defined. Have you configured your " 901ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich "service correctly? https://source.android.com/security/selinux/" 911ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich "device-policy#label_new_services_and_address_denials"; 92344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 93344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc < 0) { 9476af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Error() << "Could not get process context"; 95344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 96344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return computed_context; 97344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 98344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 991b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obesstatic void SetUpPidNamespace(const std::string& service_name) { 1001b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes constexpr unsigned int kSafeFlags = MS_NODEV | MS_NOEXEC | MS_NOSUID; 1011b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1021b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // It's OK to LOG(FATAL) in this function since it's running in the first 1031b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // child process. 1044bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen 1054bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // Recursively remount / as slave like zygote does so unmounting and mounting /proc 1064bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // doesn't interfere with the parent namespace's /proc mount. This will also 1074bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // prevent any other mounts/unmounts initiated by the service from interfering 1084bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // with the parent namespace but will still allow mount events from the parent 1094bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // namespace to propagate to the child. 1104bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen if (mount("rootfs", "/", nullptr, (MS_SLAVE | MS_REC), nullptr) == -1) { 1114bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen PLOG(FATAL) << "couldn't remount(/) recursively as slave for " << service_name; 1124bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen } 1134bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // umount() then mount() /proc. 1144bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // Note that it is not sufficient to mount with MS_REMOUNT. 1154bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen if (umount("/proc") == -1) { 1164bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen PLOG(FATAL) << "couldn't umount(/proc) for " << service_name; 1174bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen } 1184bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen if (mount("", "/proc", "proc", kSafeFlags, "") == -1) { 1194bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen PLOG(FATAL) << "couldn't mount(/proc) for " << service_name; 1201b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1211b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1221b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (prctl(PR_SET_NAME, service_name.c_str()) == -1) { 123e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't set name for " << service_name; 1241b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1251b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1261b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t child_pid = fork(); 1271b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid == -1) { 128e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't fork init inside the PID namespace for " << service_name; 1291b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1301b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1311b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid > 0) { 1321b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // So that we exit with the right status. 1331b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes static int init_exitstatus = 0; 1341b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes signal(SIGTERM, [](int) { _exit(init_exitstatus); }); 1351b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1361b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t waited_pid; 1371b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes int status; 1381b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes while ((waited_pid = wait(&status)) > 0) { 1391b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This loop will end when there are no processes left inside the 1401b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespace or when the init process inside the PID namespace 1411b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // gets a signal. 1421b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (waited_pid == child_pid) { 1431b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes init_exitstatus = status; 1441b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1451b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1461b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (!WIFEXITED(init_exitstatus)) { 1471b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(EXIT_FAILURE); 1481b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1491b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(WEXITSTATUS(init_exitstatus)); 1501b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1511b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 1521b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1535e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherrystatic bool ExpandArgsAndExecv(const std::vector<std::string>& args) { 154344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::vector<std::string> expanded_args; 1555e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry std::vector<char*> c_strings; 1565e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry 157344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes expanded_args.resize(args.size()); 1585e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry c_strings.push_back(const_cast<char*>(args[0].data())); 159344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes for (std::size_t i = 1; i < args.size(); ++i) { 160344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!expand_props(args[i], &expanded_args[i])) { 161344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(FATAL) << args[0] << ": cannot expand '" << args[i] << "'"; 162344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 1635e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry c_strings.push_back(expanded_args[i].data()); 164344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 1655e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry c_strings.push_back(nullptr); 1665e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry 1675e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry return execv(c_strings[0], c_strings.data()) == 0; 168344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 169344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 1705938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherryunsigned long Service::next_start_order_ = 1; 1713b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherrybool Service::is_exec_service_running_ = false; 1725938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry 173cb0f9bbc855097e0c8248643015b837255fd569aTom CherryService::Service(const std::string& name, Subcontext* subcontext_for_restart_commands, 174cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry const std::vector<std::string>& args) 175cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry : Service(name, 0, 0, 0, {}, 0, 0, "", subcontext_for_restart_commands, args) {} 176bac3299720623f4226bca103b26260052732ad30Tom Cherry 177641ff0a4d8d05349d9c22f726a035a2936a2a94dWei WangService::Service(const std::string& name, unsigned flags, uid_t uid, gid_t gid, 178641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang const std::vector<gid_t>& supp_gids, const CapSet& capabilities, 179641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang unsigned namespace_flags, const std::string& seclabel, 180cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry Subcontext* subcontext_for_restart_commands, const std::vector<std::string>& args) 181641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang : name_(name), 182641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang classnames_({"default"}), 183641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang flags_(flags), 184641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang pid_(0), 185641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang crash_count_(0), 186641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang uid_(uid), 187641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang gid_(gid), 188641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang supp_gids_(supp_gids), 189641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang capabilities_(capabilities), 190641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang namespace_flags_(namespace_flags), 191641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang seclabel_(seclabel), 192cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry onrestart_(false, subcontext_for_restart_commands, "<Service '" + name + "' onrestart>", 0), 1937da548578c25683fe0082283303e16961df312daTom Cherry keychord_id_(0), 194641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_class_(IoSchedClass_NONE), 195641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_pri_(0), 196641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang priority_(0), 197641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang oom_score_adjust_(-1000), 198d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea swappiness_(-1), 199d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea soft_limit_in_bytes_(-1), 200d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea limit_in_bytes_(-1), 2015938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry start_order_(0), 202641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang args_(args) { 203bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.InitSingleTrigger("onrestart"); 204bac3299720623f4226bca103b26260052732ad30Tom Cherry} 205bac3299720623f4226bca103b26260052732ad30Tom Cherry 206bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::NotifyStateChange(const std::string& new_state) const { 207b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if ((flags_ & SVC_TEMPORARY) != 0) { 208b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry // Services created by 'exec' are temporary and don't have properties tracking their state. 209bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 210bac3299720623f4226bca103b26260052732ad30Tom Cherry } 211bac3299720623f4226bca103b26260052732ad30Tom Cherry 2121c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string prop_name = "init.svc." + name_; 2131c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry property_set(prop_name, new_state); 2149605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes 2159605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (new_state == "running") { 2169605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes uint64_t start_ns = time_started_.time_since_epoch().count(); 217fed3373b5b671613c615b63800eb3977bb1911eaTom Cherry std::string boottime_property = "ro.boottime." + name_; 218fed3373b5b671613c615b63800eb3977bb1911eaTom Cherry if (GetProperty(boottime_property, "").empty()) { 219fed3373b5b671613c615b63800eb3977bb1911eaTom Cherry property_set(boottime_property, std::to_string(start_ns)); 220fed3373b5b671613c615b63800eb3977bb1911eaTom Cherry } 2219605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes } 222bac3299720623f4226bca103b26260052732ad30Tom Cherry} 223bac3299720623f4226bca103b26260052732ad30Tom Cherry 224ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughesvoid Service::KillProcessGroup(int signal) { 22533838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // If we've already seen a successful result from killProcessGroup*(), then we have removed 22633838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // the cgroup already and calling these functions a second time will simply result in an error. 22733838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // This is true regardless of which signal was sent. 22833838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // These functions handle their own logging, so no additional logging is needed. 22933838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (!process_cgroup_empty_) { 23033838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry LOG(INFO) << "Sending signal " << signal << " to service '" << name_ << "' (pid " << pid_ 23133838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry << ") process group..."; 23233838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry int r; 23333838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (signal == SIGTERM) { 23433838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry r = killProcessGroupOnce(uid_, pid_, signal); 23533838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } else { 23633838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry r = killProcessGroup(uid_, pid_, signal); 23733838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } 23833838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry 23933838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (r == 0) process_cgroup_empty_ = true; 24033838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } 241ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes} 242ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 243344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesvoid Service::SetProcessAttributes() { 2447ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry for (const auto& rlimit : rlimits_) { 2457ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry if (setrlimit(rlimit.first, &rlimit.second) == -1) { 2467ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry LOG(FATAL) << StringPrintf("setrlimit(%d, {rlim_cur=%ld, rlim_max=%ld}) failed", 2477ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry rlimit.first, rlimit.second.rlim_cur, rlimit.second.rlim_max); 2487ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry } 2497ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry } 25024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes // Keep capabilites on uid change. 25124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any() && uid_) { 252f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez // If Android is running in a container, some securebits might already 253f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez // be locked, so don't change those. 254a72436067d5f88885e4b32fa7c5d22f1ea8c0756Ben Fennema unsigned long securebits = prctl(PR_GET_SECUREBITS); 255a72436067d5f88885e4b32fa7c5d22f1ea8c0756Ben Fennema if (securebits == -1UL) { 256f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez PLOG(FATAL) << "prctl(PR_GET_SECUREBITS) failed for " << name_; 257f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez } 258f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez securebits |= SECBIT_KEEP_CAPS | SECBIT_KEEP_CAPS_LOCKED; 259f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez if (prctl(PR_SET_SECUREBITS, securebits) != 0) { 260f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez PLOG(FATAL) << "prctl(PR_SET_SECUREBITS) failed for " << name_; 26124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 26224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 26324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 264e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes // TODO: work out why this fails for `console` then upgrade to FATAL. 265e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes if (setpgid(0, getpid()) == -1) PLOG(ERROR) << "setpgid failed for " << name_; 266344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 267344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (gid_) { 268344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setgid(gid_) != 0) { 269e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setgid failed for " << name_; 270344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 271344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 27280960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich if (setgroups(supp_gids_.size(), &supp_gids_[0]) != 0) { 27380960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich PLOG(FATAL) << "setgroups failed for " << name_; 274344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 275344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (uid_) { 276344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setuid(uid_) != 0) { 277e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setuid failed for " << name_; 278344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 279344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 280344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!seclabel_.empty()) { 281344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setexeccon(seclabel_.c_str()) < 0) { 282e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "cannot setexeccon('" << seclabel_ << "') for " << name_; 283344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 284344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 285344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (priority_ != 0) { 286344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setpriority(PRIO_PROCESS, 0, priority_) != 0) { 287e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setpriority failed for " << name_; 288344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 289344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 29024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any()) { 29124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (!SetCapsForExec(capabilities_)) { 29224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes LOG(FATAL) << "cannot set capabilities for " << name_; 29324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 29494fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez } else if (uid_) { 29594fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez // Inheritable caps can be non-zero when running in a container. 29694fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez if (!DropInheritableCaps()) { 29794fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez LOG(FATAL) << "cannot drop inheritable caps for " << name_; 29894fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez } 29924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 300344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 301344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 302b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherryvoid Service::Reap() { 303bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_ONESHOT) || (flags_ & SVC_RESTART)) { 304ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 305bac3299720623f4226bca103b26260052732ad30Tom Cherry } 306bac3299720623f4226bca103b26260052732ad30Tom Cherry 30762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn // Remove any descriptor resources we may have created. 30862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 30962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::Clean, std::placeholders::_1)); 310bac3299720623f4226bca103b26260052732ad30Tom Cherry 3113b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry if (flags_ & SVC_EXEC) UnSetExec(); 3123b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 3133b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry if (flags_ & SVC_TEMPORARY) return; 314bac3299720623f4226bca103b26260052732ad30Tom Cherry 315bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 316bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RUNNING); 3175938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry start_order_ = 0; 318bac3299720623f4226bca103b26260052732ad30Tom Cherry 319bac3299720623f4226bca103b26260052732ad30Tom Cherry // Oneshot processes go into the disabled state on exit, 320bac3299720623f4226bca103b26260052732ad30Tom Cherry // except when manually restarted. 321bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_ONESHOT) && !(flags_ & SVC_RESTART)) { 322bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 323bac3299720623f4226bca103b26260052732ad30Tom Cherry } 324bac3299720623f4226bca103b26260052732ad30Tom Cherry 325bac3299720623f4226bca103b26260052732ad30Tom Cherry // Disabled and reset processes do not get restarted automatically. 326bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & (SVC_DISABLED | SVC_RESET)) { 327bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 328b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return; 329bac3299720623f4226bca103b26260052732ad30Tom Cherry } 330bac3299720623f4226bca103b26260052732ad30Tom Cherry 3319605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes // If we crash > 4 times in 4 minutes, reboot into recovery. 3329605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes boot_clock::time_point now = boot_clock::now(); 333bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_CRITICAL) && !(flags_ & SVC_RESTART)) { 3349605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (now < time_crashed_ + 4min) { 3359605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (++crash_count_ > 4) { 336d8db7ab80d8a79c89393fa0c4ab343e85312d8d5Tom Cherry LOG(FATAL) << "critical process '" << name_ << "' exited 4 times in 4 minutes"; 337bac3299720623f4226bca103b26260052732ad30Tom Cherry } 338bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 339bac3299720623f4226bca103b26260052732ad30Tom Cherry time_crashed_ = now; 3409605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes crash_count_ = 1; 341bac3299720623f4226bca103b26260052732ad30Tom Cherry } 342bac3299720623f4226bca103b26260052732ad30Tom Cherry } 343bac3299720623f4226bca103b26260052732ad30Tom Cherry 344bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RESTART); 345bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RESTARTING; 346bac3299720623f4226bca103b26260052732ad30Tom Cherry 347bac3299720623f4226bca103b26260052732ad30Tom Cherry // Execute all onrestart commands for this service. 348bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.ExecuteAllCommands(); 349bac3299720623f4226bca103b26260052732ad30Tom Cherry 350bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("restarting"); 351b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return; 352bac3299720623f4226bca103b26260052732ad30Tom Cherry} 353bac3299720623f4226bca103b26260052732ad30Tom Cherry 354bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::DumpState() const { 355f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << "service " << name_; 35681f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry LOG(INFO) << " class '" << Join(classnames_, " ") << "'"; 35781f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry LOG(INFO) << " exec " << Join(args_, " "); 35862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 35962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [] (const auto& info) { LOG(INFO) << *info; }); 360bac3299720623f4226bca103b26260052732ad30Tom Cherry} 361bac3299720623f4226bca103b26260052732ad30Tom Cherry 36289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseCapabilities(const std::vector<std::string>& args) { 36324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_ = 0; 36424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 365f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (!CapAmbientSupported()) { 36689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() 36789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry << "capabilities requested but the kernel does not support ambient capabilities"; 368f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 369f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes 370f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes unsigned int last_valid_cap = GetLastValidCap(); 371f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (last_valid_cap >= capabilities_.size()) { 372f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes LOG(WARNING) << "last valid run-time capability is larger than CAP_LAST_CAP"; 373f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 374f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes 37524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 37624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const std::string& arg = args[i]; 377f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes int res = LookupCap(arg); 378f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (res < 0) { 37989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << StringPrintf("invalid capability '%s'", arg.c_str()); 38024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 381f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes unsigned int cap = static_cast<unsigned int>(res); // |res| is >= 0. 382f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (cap > last_valid_cap) { 38389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << StringPrintf("capability '%s' not supported by the kernel", 38489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry arg.c_str()); 385f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 38624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_[cap] = true; 38724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 38889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 38924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes} 39024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 39189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseClass(const std::vector<std::string>& args) { 392641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang classnames_ = std::set<std::string>(args.begin() + 1, args.end()); 39389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 394b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 395bac3299720623f4226bca103b26260052732ad30Tom Cherry 39689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseConsole(const std::vector<std::string>& args) { 397b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CONSOLE; 39870daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = args.size() > 1 ? "/dev/" + args[1] : ""; 39989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 400b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 401bac3299720623f4226bca103b26260052732ad30Tom Cherry 40289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseCritical(const std::vector<std::string>& args) { 403b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CRITICAL; 40489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 405b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 406bac3299720623f4226bca103b26260052732ad30Tom Cherry 40789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseDisabled(const std::vector<std::string>& args) { 408b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_DISABLED; 409b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_RC_DISABLED; 41089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 411b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 412bac3299720623f4226bca103b26260052732ad30Tom Cherry 41389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseGroup(const std::vector<std::string>& args) { 41411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto gid = DecodeUid(args[1]); 41511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 41689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to decode GID for '" << args[1] << "': " << gid.error(); 417517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 41811a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid_ = *gid; 41911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry 420b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t n = 2; n < args.size(); n++) { 42111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid = DecodeUid(args[n]); 42211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 42389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to decode GID for '" << args[n] << "': " << gid.error(); 424517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 42511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry supp_gids_.emplace_back(*gid); 426b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 42789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 428b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 429bac3299720623f4226bca103b26260052732ad30Tom Cherry 43089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParsePriority(const std::vector<std::string>& args) { 431da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes priority_ = 0; 432da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &priority_, 433dd34ca45ea80c519a579578562e73d5e7f86703bKeun-young Park static_cast<int>(ANDROID_PRIORITY_HIGHEST), // highest is negative 434dd34ca45ea80c519a579578562e73d5e7f86703bKeun-young Park static_cast<int>(ANDROID_PRIORITY_LOWEST))) { 43589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << StringPrintf("process priority value must be range %d - %d", 43689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry ANDROID_PRIORITY_HIGHEST, ANDROID_PRIORITY_LOWEST); 437081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv } 43889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 439081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv} 440081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv 441e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven MorelandResult<Success> Service::ParseInterface(const std::vector<std::string>& args) { 442e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland const std::string& interface_name = args[1]; 443e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland const std::string& instance_name = args[2]; 444e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 445e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland const FQName fq_name = FQName(interface_name); 446e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland if (!fq_name.isValid()) { 447e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Error() << "Invalid fully-qualified name for interface '" << interface_name << "'"; 448e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 449e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 450e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland if (!fq_name.isFullyQualified()) { 451e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Error() << "Interface name not fully-qualified '" << interface_name << "'"; 452e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 453e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 454e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland if (fq_name.isValidValueName()) { 455e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Error() << "Interface name must not be a value name '" << interface_name << "'"; 456e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 457e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 458e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland const std::string fullname = interface_name + "/" + instance_name; 459e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 460e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland for (const auto& svc : ServiceList::GetInstance()) { 461e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland if (svc->interfaces().count(fullname) > 0) { 462e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Error() << "Interface '" << fullname << "' redefined in " << name() 463e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland << " but is already defined by " << svc->name(); 464e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 465e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 466e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 467e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland interfaces_.insert(fullname); 468e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 469e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Success(); 470e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland} 471e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 47289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseIoprio(const std::vector<std::string>& args) { 473da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[2], &ioprio_pri_, 0, 7)) { 47489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "priority value must be range 0 - 7"; 475b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 476b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 477b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args[1] == "rt") { 478b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_RT; 479b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "be") { 480b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_BE; 481b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "idle") { 482b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_IDLE; 483b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else { 48489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "ioprio option usage: ioprio <rt|be|idle> <0-7>"; 485bac3299720623f4226bca103b26260052732ad30Tom Cherry } 486bac3299720623f4226bca103b26260052732ad30Tom Cherry 48789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 488b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 489bac3299720623f4226bca103b26260052732ad30Tom Cherry 49089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseKeycodes(const std::vector<std::string>& args) { 491b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t i = 1; i < args.size(); i++) { 492da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes int code; 493da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (ParseInt(args[i], &code)) { 494da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes keycodes_.emplace_back(code); 495da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } else { 496da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes LOG(WARNING) << "ignoring invalid keycode: " << args[i]; 497da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } 498bac3299720623f4226bca103b26260052732ad30Tom Cherry } 49989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 500b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 501b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 50289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseOneshot(const std::vector<std::string>& args) { 503b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_ONESHOT; 50489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 505b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 506b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 50789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseOnrestart(const std::vector<std::string>& args) { 508b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 1, args.end()); 509012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry int line = onrestart_.NumCommands() + 1; 51089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry if (auto result = onrestart_.AddCommand(str_args, line); !result) { 51189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "cannot add Onrestart command: " << result.error(); 51289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry } 51389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 514b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 515bac3299720623f4226bca103b26260052732ad30Tom Cherry 51689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseNamespace(const std::vector<std::string>& args) { 5171b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 5181b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (args[i] == "pid") { 5191b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWPID; 5201b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespaces require mount namespaces. 5211b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 5221b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else if (args[i] == "mnt") { 5231b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 5241b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 52589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "namespace must be 'pid' or 'mnt'"; 5261b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 5271b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 52889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 5291b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 5301b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 53189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseOomScoreAdjust(const std::vector<std::string>& args) { 532da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &oom_score_adjust_, -1000, 1000)) { 53389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "oom_score_adjust value must be in range -1000 - +1000"; 534310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 53589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 536310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen} 537310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 5386f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven MorelandResult<Success> Service::ParseOverride(const std::vector<std::string>& args) { 5396f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland override_ = true; 5406f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland return Success(); 5416f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland} 5426f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland 54389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseMemcgSwappiness(const std::vector<std::string>& args) { 544d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!ParseInt(args[1], &swappiness_, 0)) { 54589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "swappiness value must be equal or greater than 0"; 546d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 54789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 548d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea} 549d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 55089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseMemcgLimitInBytes(const std::vector<std::string>& args) { 551d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!ParseInt(args[1], &limit_in_bytes_, 0)) { 55289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "limit_in_bytes value must be equal or greater than 0"; 553d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 55489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 555d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea} 556d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 55789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseMemcgSoftLimitInBytes(const std::vector<std::string>& args) { 558d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!ParseInt(args[1], &soft_limit_in_bytes_, 0)) { 55989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "soft_limit_in_bytes value must be equal or greater than 0"; 560d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 56189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 562d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea} 563d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 5647ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom CherryResult<Success> Service::ParseProcessRlimit(const std::vector<std::string>& args) { 5657ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry auto rlimit = ParseRlimit(args); 5667ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry if (!rlimit) return rlimit.error(); 5677ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry 5687ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry rlimits_.emplace_back(*rlimit); 5697ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry return Success(); 5707ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry} 5717ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry 57289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseSeclabel(const std::vector<std::string>& args) { 573b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry seclabel_ = args[1]; 57489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 575b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 576b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 57789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseSetenv(const std::vector<std::string>& args) { 5786de21f11125941ea1b94fdeec754bacea3916fd5Tom Cherry environment_vars_.emplace_back(args[1], args[2]); 57989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 580b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 581b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 58289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseShutdown(const std::vector<std::string>& args) { 583cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park if (args[1] == "critical") { 584cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park flags_ |= SVC_SHUTDOWN_CRITICAL; 58589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 586cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park } 58789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Invalid shutdown option"; 588cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park} 589cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park 59062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyntemplate <typename T> 59189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::AddDescriptor(const std::vector<std::string>& args) { 59262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn int perm = args.size() > 3 ? std::strtoul(args[3].c_str(), 0, 8) : -1; 59311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<uid_t> uid = 0; 59411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<gid_t> gid = 0; 59562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::string context = args.size() > 6 ? args[6] : ""; 59662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 597517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (args.size() > 4) { 59811a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry uid = DecodeUid(args[4]); 59911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!uid) { 60089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to find UID for '" << args[4] << "': " << uid.error(); 601517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 602517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 603517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry 604517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (args.size() > 5) { 60511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid = DecodeUid(args[5]); 60611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 60789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to find GID for '" << args[5] << "': " << gid.error(); 608517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 609517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 610517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry 61111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto descriptor = std::make_unique<T>(args[1], args[2], *uid, *gid, perm, context); 61262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 61362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn auto old = 61462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::find_if(descriptors_.begin(), descriptors_.end(), 61562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [&descriptor] (const auto& other) { return descriptor.get() == other.get(); }); 61662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 61762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (old != descriptors_.end()) { 61889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "duplicate descriptor " << args[1] << " " << args[2]; 61962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 62062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 62162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn descriptors_.emplace_back(std::move(descriptor)); 62289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 62362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 62462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 62562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 62689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseSocket(const std::vector<std::string>& args) { 62781f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry if (!StartsWith(args[2], "dgram") && !StartsWith(args[2], "stream") && 62881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry !StartsWith(args[2], "seqpacket")) { 62989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "socket type must be 'dgram', 'stream' or 'seqpacket'"; 630bac3299720623f4226bca103b26260052732ad30Tom Cherry } 63189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return AddDescriptor<SocketInfo>(args); 63262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 633b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 63462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 63589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseFile(const std::vector<std::string>& args) { 63662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (args[2] != "r" && args[2] != "w" && args[2] != "rw") { 63789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "file type must be 'r', 'w' or 'rw'"; 63862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 63962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if ((args[1][0] != '/') || (args[1].find("../") != std::string::npos)) { 64089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "file name must not be relative"; 64162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 64289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return AddDescriptor<FileInfo>(args); 643bac3299720623f4226bca103b26260052732ad30Tom Cherry} 644bac3299720623f4226bca103b26260052732ad30Tom Cherry 64589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseUser(const std::vector<std::string>& args) { 64611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto uid = DecodeUid(args[1]); 64711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!uid) { 64889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to find UID for '" << args[1] << "': " << uid.error(); 649517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 65011a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry uid_ = *uid; 65189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 652b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 653b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 65489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseWritepid(const std::vector<std::string>& args) { 655b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry writepid_files_.assign(args.begin() + 1, args.end()); 65689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 657b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 658b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 659177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesclass Service::OptionParserMap : public KeywordMap<OptionParser> { 660ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry public: 661ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry OptionParserMap() {} 662ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry 663ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry private: 664ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry const Map& map() const override; 665b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry}; 666b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 667ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherryconst Service::OptionParserMap::Map& Service::OptionParserMap::map() const { 668b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry constexpr std::size_t kMax = std::numeric_limits<std::size_t>::max(); 669641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang // clang-format off 670177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const Map option_parsers = { 67124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {"capabilities", 67224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {1, kMax, &Service::ParseCapabilities}}, 673641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang {"class", {1, kMax, &Service::ParseClass}}, 674177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"console", {0, 1, &Service::ParseConsole}}, 675177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"critical", {0, 0, &Service::ParseCritical}}, 676177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"disabled", {0, 0, &Service::ParseDisabled}}, 677177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"group", {1, NR_SVC_SUPP_GIDS + 1, &Service::ParseGroup}}, 678e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland {"interface", {2, 2, &Service::ParseInterface}}, 679177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"ioprio", {2, 2, &Service::ParseIoprio}}, 680177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"priority", {1, 1, &Service::ParsePriority}}, 681177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"keycodes", {1, kMax, &Service::ParseKeycodes}}, 682177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"oneshot", {0, 0, &Service::ParseOneshot}}, 683177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"onrestart", {1, kMax, &Service::ParseOnrestart}}, 6846f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland {"override", {0, 0, &Service::ParseOverride}}, 685310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {"oom_score_adjust", 686310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {1, 1, &Service::ParseOomScoreAdjust}}, 687d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {"memcg.swappiness", 688d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {1, 1, &Service::ParseMemcgSwappiness}}, 689d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {"memcg.soft_limit_in_bytes", 690d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {1, 1, &Service::ParseMemcgSoftLimitInBytes}}, 691d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {"memcg.limit_in_bytes", 692d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {1, 1, &Service::ParseMemcgLimitInBytes}}, 693177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"namespace", {1, 2, &Service::ParseNamespace}}, 6947ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry {"rlimit", {3, 3, &Service::ParseProcessRlimit}}, 695177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"seclabel", {1, 1, &Service::ParseSeclabel}}, 696177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"setenv", {2, 2, &Service::ParseSetenv}}, 697cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park {"shutdown", {1, 1, &Service::ParseShutdown}}, 698177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"socket", {3, 6, &Service::ParseSocket}}, 699978fd0ea254f11f84e38b41a74bbe70c81edc197Mark Salyzyn {"file", {2, 2, &Service::ParseFile}}, 700177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"user", {1, 1, &Service::ParseUser}}, 701177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"writepid", {1, kMax, &Service::ParseWritepid}}, 702b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry }; 703641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang // clang-format on 704177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return option_parsers; 705b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 706b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 70789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseLine(const std::vector<std::string>& args) { 708177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const OptionParserMap parser_map; 70989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry auto parser = parser_map.FindFunction(args); 710b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 71176af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry if (!parser) return parser.error(); 712b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 71389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return std::invoke(*parser, this, args); 714b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 715b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 71676af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom CherryResult<Success> Service::ExecStart() { 7173b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry flags_ |= SVC_ONESHOT; 718b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 71976af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry if (auto result = Start(); !result) { 72076af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return result; 721b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry } 7223b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 7233b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry flags_ |= SVC_EXEC; 7243b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry is_exec_service_running_ = true; 7253b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 7263b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry LOG(INFO) << "SVC_EXEC pid " << pid_ << " (uid " << uid_ << " gid " << gid_ << "+" 7273b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry << supp_gids_.size() << " context " << (!seclabel_.empty() ? seclabel_ : "default") 7283b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry << ") started; waiting..."; 7293b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 73076af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 731b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry} 732b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 73376af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom CherryResult<Success> Service::Start() { 734990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu bool disabled = (flags_ & (SVC_DISABLED | SVC_RESET)); 735bac3299720623f4226bca103b26260052732ad30Tom Cherry // Starting a service removes it from the disabled or reset state and 736bac3299720623f4226bca103b26260052732ad30Tom Cherry // immediately takes it out of the restarting state if it was in there. 737bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~(SVC_DISABLED|SVC_RESTARTING|SVC_RESET|SVC_RESTART|SVC_DISABLED_START)); 738bac3299720623f4226bca103b26260052732ad30Tom Cherry 739bac3299720623f4226bca103b26260052732ad30Tom Cherry // Running processes require no additional work --- if they're in the 740bac3299720623f4226bca103b26260052732ad30Tom Cherry // process of exiting, we've ensured that they will immediately restart 741990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu // on exit, unless they are ONESHOT. For ONESHOT service, if it's in 742990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu // stopping status, we just set SVC_RESTART flag so it will get restarted 743990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu // in Reap(). 744bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 745990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu if ((flags_ & SVC_ONESHOT) && disabled) { 746990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu flags_ |= SVC_RESTART; 747990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu } 74876af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry // It is not an error to try to start a service that is already running. 74976af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 750bac3299720623f4226bca103b26260052732ad30Tom Cherry } 751bac3299720623f4226bca103b26260052732ad30Tom Cherry 752bac3299720623f4226bca103b26260052732ad30Tom Cherry bool needs_console = (flags_ & SVC_CONSOLE); 75370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (needs_console) { 75470daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (console_.empty()) { 75570daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = default_console; 75670daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 75770daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman 75824ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido // Make sure that open call succeeds to ensure a console driver is 75924ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido // properly registered for the device node 76024ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido int console_fd = open(console_.c_str(), O_RDWR | O_CLOEXEC); 76124ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido if (console_fd < 0) { 76270daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman flags_ |= SVC_DISABLED; 76376af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return ErrnoError() << "Couldn't open console '" << console_ << "'"; 76470daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 76524ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido close(console_fd); 766bac3299720623f4226bca103b26260052732ad30Tom Cherry } 767bac3299720623f4226bca103b26260052732ad30Tom Cherry 768bac3299720623f4226bca103b26260052732ad30Tom Cherry struct stat sb; 769bac3299720623f4226bca103b26260052732ad30Tom Cherry if (stat(args_[0].c_str(), &sb) == -1) { 770bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 77176af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return ErrnoError() << "Cannot find '" << args_[0] << "'"; 772bac3299720623f4226bca103b26260052732ad30Tom Cherry } 773bac3299720623f4226bca103b26260052732ad30Tom Cherry 774bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string scon; 775bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!seclabel_.empty()) { 776bac3299720623f4226bca103b26260052732ad30Tom Cherry scon = seclabel_; 777bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 77876af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry auto result = ComputeContextFromExecutable(name_, args_[0]); 77976af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry if (!result) { 78076af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return result.error(); 781bac3299720623f4226bca103b26260052732ad30Tom Cherry } 78276af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry scon = *result; 783bac3299720623f4226bca103b26260052732ad30Tom Cherry } 784bac3299720623f4226bca103b26260052732ad30Tom Cherry 785a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << "starting service '" << name_ << "'..."; 786bac3299720623f4226bca103b26260052732ad30Tom Cherry 7871b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t pid = -1; 7881b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_) { 789344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes pid = clone(nullptr, nullptr, namespace_flags_ | SIGCHLD, nullptr); 7901b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 7911b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid = fork(); 7921b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 7931b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 794bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid == 0) { 795bac3299720623f4226bca103b26260052732ad30Tom Cherry umask(077); 796bac3299720623f4226bca103b26260052732ad30Tom Cherry 7971b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_ & CLONE_NEWPID) { 7981b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This will fork again to run an init process inside the PID 7991b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // namespace. 8001b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes SetUpPidNamespace(name_); 8011b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 8021b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 8036de21f11125941ea1b94fdeec754bacea3916fd5Tom Cherry for (const auto& [key, value] : environment_vars_) { 8046de21f11125941ea1b94fdeec754bacea3916fd5Tom Cherry setenv(key.c_str(), value.c_str(), 1); 805bac3299720623f4226bca103b26260052732ad30Tom Cherry } 806bac3299720623f4226bca103b26260052732ad30Tom Cherry 80762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 80862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::CreateAndPublish, std::placeholders::_1, scon)); 809bac3299720623f4226bca103b26260052732ad30Tom Cherry 8100828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // See if there were "writepid" instructions to write to files under /dev/cpuset/. 8110828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko auto cpuset_predicate = [](const std::string& path) { 81281f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry return StartsWith(path, "/dev/cpuset/"); 8130828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko }; 8140828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko auto iter = std::find_if(writepid_files_.begin(), writepid_files_.end(), cpuset_predicate); 8150828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (iter == writepid_files_.end()) { 8160828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // There were no "writepid" instructions for cpusets, check if the system default 8170828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // cpuset is specified to be used for the process. 81881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry std::string default_cpuset = GetProperty("ro.cpuset.default", ""); 8190828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (!default_cpuset.empty()) { 8200828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // Make sure the cpuset name starts and ends with '/'. 8210828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // A single '/' means the 'root' cpuset. 8220828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (default_cpuset.front() != '/') { 8230828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko default_cpuset.insert(0, 1, '/'); 8240828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 8250828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (default_cpuset.back() != '/') { 8260828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko default_cpuset.push_back('/'); 8270828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 8280828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko writepid_files_.push_back( 8290828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko StringPrintf("/dev/cpuset%stasks", default_cpuset.c_str())); 8300828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 8310828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 8321c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string pid_str = std::to_string(getpid()); 833bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& file : writepid_files_) { 834b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!WriteStringToFile(pid_str, file)) { 835f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "couldn't write " << pid_str << " to " << file; 836bac3299720623f4226bca103b26260052732ad30Tom Cherry } 837bac3299720623f4226bca103b26260052732ad30Tom Cherry } 838bac3299720623f4226bca103b26260052732ad30Tom Cherry 839bac3299720623f4226bca103b26260052732ad30Tom Cherry if (ioprio_class_ != IoSchedClass_NONE) { 840bac3299720623f4226bca103b26260052732ad30Tom Cherry if (android_set_ioprio(getpid(), ioprio_class_, ioprio_pri_)) { 841344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "failed to set pid " << getpid() 842f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << " ioprio=" << ioprio_class_ << "," << ioprio_pri_; 843bac3299720623f4226bca103b26260052732ad30Tom Cherry } 844bac3299720623f4226bca103b26260052732ad30Tom Cherry } 845bac3299720623f4226bca103b26260052732ad30Tom Cherry 846bac3299720623f4226bca103b26260052732ad30Tom Cherry if (needs_console) { 847bac3299720623f4226bca103b26260052732ad30Tom Cherry setsid(); 848bac3299720623f4226bca103b26260052732ad30Tom Cherry OpenConsole(); 849bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 850bac3299720623f4226bca103b26260052732ad30Tom Cherry ZapStdio(); 851bac3299720623f4226bca103b26260052732ad30Tom Cherry } 852bac3299720623f4226bca103b26260052732ad30Tom Cherry 853344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // As requested, set our gid, supplemental gids, uid, context, and 854344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // priority. Aborts on failure. 855344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes SetProcessAttributes(); 856bac3299720623f4226bca103b26260052732ad30Tom Cherry 8575e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry if (!ExpandArgsAndExecv(args_)) { 8585e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry PLOG(ERROR) << "cannot execve('" << args_[0] << "')"; 859bac3299720623f4226bca103b26260052732ad30Tom Cherry } 860bac3299720623f4226bca103b26260052732ad30Tom Cherry 861bac3299720623f4226bca103b26260052732ad30Tom Cherry _exit(127); 862bac3299720623f4226bca103b26260052732ad30Tom Cherry } 863bac3299720623f4226bca103b26260052732ad30Tom Cherry 864bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid < 0) { 865bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 86676af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return ErrnoError() << "Failed to fork"; 867bac3299720623f4226bca103b26260052732ad30Tom Cherry } 868bac3299720623f4226bca103b26260052732ad30Tom Cherry 869310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (oom_score_adjust_ != -1000) { 8701c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string oom_str = std::to_string(oom_score_adjust_); 871310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen std::string oom_file = StringPrintf("/proc/%d/oom_score_adj", pid); 872310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (!WriteStringToFile(oom_str, oom_file)) { 873310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen PLOG(ERROR) << "couldn't write oom_score_adj: " << strerror(errno); 874310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 875310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 876310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 8779605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes time_started_ = boot_clock::now(); 878bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = pid; 879bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RUNNING; 8805938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry start_order_ = next_start_order_++; 88133838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry process_cgroup_empty_ = false; 882ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 883ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes errno = -createProcessGroup(uid_, pid_); 884ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes if (errno != 0) { 885344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "createProcessGroup(" << uid_ << ", " << pid_ << ") failed for service '" 886344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes << name_ << "'"; 887d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } else { 888d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (swappiness_ != -1) { 889d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!setProcessGroupSwappiness(uid_, pid_, swappiness_)) { 890d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea PLOG(ERROR) << "setProcessGroupSwappiness failed"; 891d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 892d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 893d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 894d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (soft_limit_in_bytes_ != -1) { 895d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!setProcessGroupSoftLimit(uid_, pid_, soft_limit_in_bytes_)) { 896d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea PLOG(ERROR) << "setProcessGroupSoftLimit failed"; 897d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 898d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 899d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 900d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (limit_in_bytes_ != -1) { 901d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!setProcessGroupLimit(uid_, pid_, limit_in_bytes_)) { 902d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea PLOG(ERROR) << "setProcessGroupLimit failed"; 903d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 904d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 905ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes } 906bac3299720623f4226bca103b26260052732ad30Tom Cherry 907bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("running"); 90876af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 909bac3299720623f4226bca103b26260052732ad30Tom Cherry} 910bac3299720623f4226bca103b26260052732ad30Tom Cherry 91176af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom CherryResult<Success> Service::StartIfNotDisabled() { 912bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_DISABLED)) { 913bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 914bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 915bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED_START; 916bac3299720623f4226bca103b26260052732ad30Tom Cherry } 91776af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 918bac3299720623f4226bca103b26260052732ad30Tom Cherry} 919bac3299720623f4226bca103b26260052732ad30Tom Cherry 92076af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom CherryResult<Success> Service::Enable() { 921bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_DISABLED | SVC_RC_DISABLED); 922bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_DISABLED_START) { 923bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 924bac3299720623f4226bca103b26260052732ad30Tom Cherry } 92576af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 926bac3299720623f4226bca103b26260052732ad30Tom Cherry} 927bac3299720623f4226bca103b26260052732ad30Tom Cherry 928bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Reset() { 929bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESET); 930bac3299720623f4226bca103b26260052732ad30Tom Cherry} 931bac3299720623f4226bca103b26260052732ad30Tom Cherry 932bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Stop() { 933bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_DISABLED); 934bac3299720623f4226bca103b26260052732ad30Tom Cherry} 935bac3299720623f4226bca103b26260052732ad30Tom Cherry 936b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETvoid Service::Terminate() { 937b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 938b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ |= SVC_DISABLED; 939b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (pid_) { 940ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGTERM); 941b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET NotifyStateChange("stopping"); 942b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 943b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 944b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 945bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Restart() { 946bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 947bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Stop, wait, then start the service. */ 948bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESTART); 949bac3299720623f4226bca103b26260052732ad30Tom Cherry } else if (!(flags_ & SVC_RESTARTING)) { 950bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Just start the service since it's not running. */ 95176af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry if (auto result = Start(); !result) { 95276af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry LOG(ERROR) << "Could not restart '" << name_ << "': " << result.error(); 95376af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry } 954bac3299720623f4226bca103b26260052732ad30Tom Cherry } /* else: Service is restarting anyways. */ 955bac3299720623f4226bca103b26260052732ad30Tom Cherry} 956bac3299720623f4226bca103b26260052732ad30Tom Cherry 957ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes// The how field should be either SVC_DISABLED, SVC_RESET, or SVC_RESTART. 958bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::StopOrReset(int how) { 959ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // The service is still SVC_RUNNING until its process exits, but if it has 960ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // already exited it shoudn't attempt a restart yet. 961bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 962bac3299720623f4226bca103b26260052732ad30Tom Cherry 963bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((how != SVC_DISABLED) && (how != SVC_RESET) && (how != SVC_RESTART)) { 964ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // An illegal flag: default to SVC_DISABLED. 965bac3299720623f4226bca103b26260052732ad30Tom Cherry how = SVC_DISABLED; 966bac3299720623f4226bca103b26260052732ad30Tom Cherry } 967ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 968ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // If the service has not yet started, prevent it from auto-starting with its class. 969bac3299720623f4226bca103b26260052732ad30Tom Cherry if (how == SVC_RESET) { 970bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= (flags_ & SVC_RC_DISABLED) ? SVC_DISABLED : SVC_RESET; 971bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 972bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= how; 973bac3299720623f4226bca103b26260052732ad30Tom Cherry } 97484b856d90167d567238af95fceade30a0dc93d58Tao Wu // Make sure it's in right status when a restart immediately follow a 97584b856d90167d567238af95fceade30a0dc93d58Tao Wu // stop/reset or vice versa. 97684b856d90167d567238af95fceade30a0dc93d58Tao Wu if (how == SVC_RESTART) { 97784b856d90167d567238af95fceade30a0dc93d58Tao Wu flags_ &= (~(SVC_DISABLED | SVC_RESET)); 97884b856d90167d567238af95fceade30a0dc93d58Tao Wu } else { 97984b856d90167d567238af95fceade30a0dc93d58Tao Wu flags_ &= (~SVC_RESTART); 98084b856d90167d567238af95fceade30a0dc93d58Tao Wu } 981bac3299720623f4226bca103b26260052732ad30Tom Cherry 982bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid_) { 983ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 984bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopping"); 985bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 986bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 987bac3299720623f4226bca103b26260052732ad30Tom Cherry } 988bac3299720623f4226bca103b26260052732ad30Tom Cherry} 989bac3299720623f4226bca103b26260052732ad30Tom Cherry 990bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::ZapStdio() const { 991bac3299720623f4226bca103b26260052732ad30Tom Cherry int fd; 992bac3299720623f4226bca103b26260052732ad30Tom Cherry fd = open("/dev/null", O_RDWR); 993bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 994bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 995bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 996bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 997bac3299720623f4226bca103b26260052732ad30Tom Cherry} 998bac3299720623f4226bca103b26260052732ad30Tom Cherry 999bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::OpenConsole() const { 100070daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman int fd = open(console_.c_str(), O_RDWR); 100170daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (fd == -1) fd = open("/dev/null", O_RDWR); 1002bac3299720623f4226bca103b26260052732ad30Tom Cherry ioctl(fd, TIOCSCTTY, 0); 1003bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 1004bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 1005bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 1006bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 1007bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1008bac3299720623f4226bca103b26260052732ad30Tom Cherry 1009911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom CherryServiceList::ServiceList() {} 1010bac3299720623f4226bca103b26260052732ad30Tom Cherry 1011911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom CherryServiceList& ServiceList::GetInstance() { 1012911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry static ServiceList instance; 1013bac3299720623f4226bca103b26260052732ad30Tom Cherry return instance; 1014bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1015bac3299720623f4226bca103b26260052732ad30Tom Cherry 1016911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryvoid ServiceList::AddService(std::unique_ptr<Service> service) { 1017b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry services_.emplace_back(std::move(service)); 1018bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1019bac3299720623f4226bca103b26260052732ad30Tom Cherry 10203b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherrystd::unique_ptr<Service> Service::MakeTemporaryOneshotService(const std::vector<std::string>& args) { 1021bac3299720623f4226bca103b26260052732ad30Tom Cherry // Parse the arguments: exec [SECLABEL [UID [GID]*] --] COMMAND ARGS... 1022bac3299720623f4226bca103b26260052732ad30Tom Cherry // SECLABEL can be a - to denote default 1023bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t command_arg = 1; 1024bac3299720623f4226bca103b26260052732ad30Tom Cherry for (std::size_t i = 1; i < args.size(); ++i) { 1025bac3299720623f4226bca103b26260052732ad30Tom Cherry if (args[i] == "--") { 1026bac3299720623f4226bca103b26260052732ad30Tom Cherry command_arg = i + 1; 1027bac3299720623f4226bca103b26260052732ad30Tom Cherry break; 1028bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1029bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1030bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4 + NR_SVC_SUPP_GIDS) { 1031f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called with too many supplementary group ids"; 1032bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 1033bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1034bac3299720623f4226bca103b26260052732ad30Tom Cherry 1035bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg >= args.size()) { 1036f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called without command"; 1037bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 1038bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1039bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<std::string> str_args(args.begin() + command_arg, args.end()); 1040bac3299720623f4226bca103b26260052732ad30Tom Cherry 10413b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry static size_t exec_count = 0; 10423b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry exec_count++; 10433b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry std::string name = "exec " + std::to_string(exec_count) + " (" + Join(str_args, " ") + ")"; 104486e31a81238fb30d113947e7689a38daf49097f3Tom Cherry 10453b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry unsigned flags = SVC_ONESHOT | SVC_TEMPORARY; 104624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes CapSet no_capabilities; 10471b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes unsigned namespace_flags = 0; 1048bac3299720623f4226bca103b26260052732ad30Tom Cherry 1049bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string seclabel = ""; 1050bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 2 && args[1] != "-") { 1051bac3299720623f4226bca103b26260052732ad30Tom Cherry seclabel = args[1]; 1052bac3299720623f4226bca103b26260052732ad30Tom Cherry } 105311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<uid_t> uid = 0; 1054bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 3) { 105511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry uid = DecodeUid(args[2]); 105611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!uid) { 105711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry LOG(ERROR) << "Unable to decode UID for '" << args[2] << "': " << uid.error(); 1058517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1059517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 1060bac3299720623f4226bca103b26260052732ad30Tom Cherry } 106111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<gid_t> gid = 0; 1062bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<gid_t> supp_gids; 1063bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4) { 106411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid = DecodeUid(args[3]); 106511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 106611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry LOG(ERROR) << "Unable to decode GID for '" << args[3] << "': " << gid.error(); 1067517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1068517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 1069bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t nr_supp_gids = command_arg - 1 /* -- */ - 4 /* exec SECLABEL UID GID */; 1070bac3299720623f4226bca103b26260052732ad30Tom Cherry for (size_t i = 0; i < nr_supp_gids; ++i) { 107111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto supp_gid = DecodeUid(args[4 + i]); 107211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!supp_gid) { 107311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry LOG(ERROR) << "Unable to decode GID for '" << args[4 + i] 107411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry << "': " << supp_gid.error(); 1075517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1076517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 107711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry supp_gids.push_back(*supp_gid); 1078bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1079bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1080bac3299720623f4226bca103b26260052732ad30Tom Cherry 108111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry return std::make_unique<Service>(name, flags, *uid, *gid, supp_gids, no_capabilities, 1082cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry namespace_flags, seclabel, nullptr, str_args); 1083bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1084bac3299720623f4226bca103b26260052732ad30Tom Cherry 10855938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry// Shutdown services in the opposite order that they were started. 1086911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryconst std::vector<Service*> ServiceList::services_in_shutdown_order() const { 10875938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry std::vector<Service*> shutdown_services; 10885938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry for (const auto& service : services_) { 10895938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry if (service->start_order() > 0) shutdown_services.emplace_back(service.get()); 10905938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry } 10915938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry std::sort(shutdown_services.begin(), shutdown_services.end(), 10925938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry [](const auto& a, const auto& b) { return a->start_order() > b->start_order(); }); 1093911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry return shutdown_services; 1094bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1095bac3299720623f4226bca103b26260052732ad30Tom Cherry 1096911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryvoid ServiceList::RemoveService(const Service& svc) { 1097bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc_it = std::find_if(services_.begin(), services_.end(), 1098bac3299720623f4226bca103b26260052732ad30Tom Cherry [&svc] (const std::unique_ptr<Service>& s) { 1099bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc.name() == s->name(); 1100bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 1101bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc_it == services_.end()) { 1102bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 1103bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1104bac3299720623f4226bca103b26260052732ad30Tom Cherry 1105bac3299720623f4226bca103b26260052732ad30Tom Cherry services_.erase(svc_it); 1106bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1107bac3299720623f4226bca103b26260052732ad30Tom Cherry 1108911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryvoid ServiceList::DumpState() const { 1109b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (const auto& s : services_) { 1110b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry s->DumpState(); 1111b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1112b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1113b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 111489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> ServiceParser::ParseSection(std::vector<std::string>&& args, 111589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry const std::string& filename, int line) { 1116b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args.size() < 3) { 111789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "services must have a name and a program"; 1118b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1119b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1120b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry const std::string& name = args[1]; 1121b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!IsValidName(name)) { 112289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "invalid service name '" << name << "'"; 1123b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1124b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1125cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry Subcontext* restart_action_subcontext = nullptr; 1126cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry if (subcontexts_) { 1127cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry for (auto& subcontext : *subcontexts_) { 1128cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry if (StartsWith(filename, subcontext.path_prefix().c_str())) { 1129cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry restart_action_subcontext = &subcontext; 1130cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry break; 1131cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry } 1132cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry } 1133cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry } 1134cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry 1135b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 2, args.end()); 1136cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry service_ = std::make_unique<Service>(name, restart_action_subcontext, str_args); 113789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 1138b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1139b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 114089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> ServiceParser::ParseLineSection(std::vector<std::string>&& args, int line) { 114189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return service_ ? service_->ParseLine(std::move(args)) : Success(); 1142b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1143b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 11447d0a5c3656ee56eb81e442b58063d500b4f506e0Steven MorelandResult<Success> ServiceParser::EndSection() { 1145b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (service_) { 11465e1bea30b924661878c6fac4ec14b18e5ba17773Steven Moreland Service* old_service = service_list_->FindService(service_->name()); 11475e1bea30b924661878c6fac4ec14b18e5ba17773Steven Moreland if (old_service) { 11486f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland if (!service_->is_override()) { 11496f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland return Error() << "ignored duplicate definition of service '" << service_->name() 11506f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland << "'"; 11516f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland } 11526f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland 11536f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland service_list_->RemoveService(*old_service); 11546f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland old_service = nullptr; 11555e1bea30b924661878c6fac4ec14b18e5ba17773Steven Moreland } 11565e1bea30b924661878c6fac4ec14b18e5ba17773Steven Moreland 1157911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry service_list_->AddService(std::move(service_)); 1158b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 11597d0a5c3656ee56eb81e442b58063d500b4f506e0Steven Moreland 11607d0a5c3656ee56eb81e442b58063d500b4f506e0Steven Moreland return Success(); 1161b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1162b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1163b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::IsValidName(const std::string& name) const { 1164b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // Property names can be any length, but may only contain certain characters. 1165b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // Property values can contain any characters, but may only be a certain length. 1166b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // (The latter restriction is needed because `start` and `stop` work by writing 1167b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // the service name to the "ctl.start" and "ctl.stop" properties.) 1168b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes return is_legal_property_name("init.svc." + name) && name.size() <= PROP_VALUE_MAX; 1169bac3299720623f4226bca103b26260052732ad30Tom Cherry} 117081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry 117181f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry} // namespace init 117281f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry} // namespace android 1173