service.cpp revision dc97e3e091b404b23e7fe919b30e523565f3b1ce
1bac3299720623f4226bca103b26260052732ad30Tom Cherry/* 2bac3299720623f4226bca103b26260052732ad30Tom Cherry * Copyright (C) 2015 The Android Open Source Project 3bac3299720623f4226bca103b26260052732ad30Tom Cherry * 4bac3299720623f4226bca103b26260052732ad30Tom Cherry * Licensed under the Apache License, Version 2.0 (the "License"); 5bac3299720623f4226bca103b26260052732ad30Tom Cherry * you may not use this file except in compliance with the License. 6bac3299720623f4226bca103b26260052732ad30Tom Cherry * You may obtain a copy of the License at 7bac3299720623f4226bca103b26260052732ad30Tom Cherry * 8bac3299720623f4226bca103b26260052732ad30Tom Cherry * http://www.apache.org/licenses/LICENSE-2.0 9bac3299720623f4226bca103b26260052732ad30Tom Cherry * 10bac3299720623f4226bca103b26260052732ad30Tom Cherry * Unless required by applicable law or agreed to in writing, software 11bac3299720623f4226bca103b26260052732ad30Tom Cherry * distributed under the License is distributed on an "AS IS" BASIS, 12bac3299720623f4226bca103b26260052732ad30Tom Cherry * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13bac3299720623f4226bca103b26260052732ad30Tom Cherry * See the License for the specific language governing permissions and 14bac3299720623f4226bca103b26260052732ad30Tom Cherry * limitations under the License. 15bac3299720623f4226bca103b26260052732ad30Tom Cherry */ 16bac3299720623f4226bca103b26260052732ad30Tom Cherry 17bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "service.h" 18bac3299720623f4226bca103b26260052732ad30Tom Cherry 19bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <fcntl.h> 209605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes#include <inttypes.h> 2124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes#include <linux/securebits.h> 221b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes#include <sched.h> 231b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes#include <sys/mount.h> 241b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes#include <sys/prctl.h> 25081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv#include <sys/resource.h> 26bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <sys/stat.h> 27081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv#include <sys/time.h> 28b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET#include <sys/wait.h> 29bac3299720623f4226bca103b26260052732ad30Tom Cherry#include <termios.h> 30af9ba4dc6ca98e136e887b0baa59b72fb8302dd3Dan Albert#include <unistd.h> 31bac3299720623f4226bca103b26260052732ad30Tom Cherry 324f71319df011d796a60a43fc1bc68e16fbf7d321Elliott Hughes#include <android-base/file.h> 333f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <android-base/logging.h> 34da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes#include <android-base/parseint.h> 354f71319df011d796a60a43fc1bc68e16fbf7d321Elliott Hughes#include <android-base/stringprintf.h> 36f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes#include <android-base/strings.h> 37e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland#include <hidl-util/FQName.h> 38f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner#include <processgroup/processgroup.h> 393f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <selinux/selinux.h> 403f5eaae526413a29de899270714469c76dc91ec8Tom Cherry#include <system/thread_defs.h> 41f7e79b99c1e9e3128dd9921871f7740bebb755e6Collin Mulliner 427ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry#include "rlimit_parser.h" 43bac3299720623f4226bca103b26260052732ad30Tom Cherry#include "util.h" 44bac3299720623f4226bca103b26260052732ad30Tom Cherry 45de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry#if defined(__ANDROID__) 46de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry#include <sys/system_properties.h> 47de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry 48de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry#include <android-base/properties.h> 49de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry 50de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry#include "init.h" 51de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry#include "property_service.h" 52de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry#else 53de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry#include "host_init_stubs.h" 54de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry#endif 55de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry 56e78ea77f6992013b16fd57c07548b53129cdd12fJames Hawkinsusing android::base::boot_clock; 5781f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::GetProperty; 5881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::Join; 59da46b392f10d2809b5696632f67485f272ec5698Elliott Hughesusing android::base::ParseInt; 6081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherryusing android::base::StartsWith; 61b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::StringPrintf; 62b7349902a945903f9e36a569051f5131beb0bc24Tom Cherryusing android::base::WriteStringToFile; 63b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 6481f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherrynamespace android { 6581f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherrynamespace init { 6681f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry 6776af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherrystatic Result<std::string> ComputeContextFromExecutable(std::string& service_name, 6876af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry const std::string& service_path) { 69344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::string computed_context; 70344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 71344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_con = nullptr; 72344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* raw_filecon = nullptr; 73344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 74344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getcon(&raw_con) == -1) { 7576af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Error() << "Could not get security context"; 76344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 77344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::unique_ptr<char> mycon(raw_con); 78344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 79344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (getfilecon(service_path.c_str(), &raw_filecon) == -1) { 8076af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Error() << "Could not get file context"; 81344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 82344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::unique_ptr<char> filecon(raw_filecon); 83344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 84344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes char* new_con = nullptr; 85344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes int rc = security_compute_create(mycon.get(), filecon.get(), 86344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes string_to_security_class("process"), &new_con); 87344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc == 0) { 88344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes computed_context = new_con; 89344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes free(new_con); 90344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 91344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc == 0 && computed_context == mycon.get()) { 921ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich return Error() << "File " << service_path << "(labeled \"" << filecon.get() 931ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich << "\") has incorrect label or no domain transition from " << mycon.get() 941ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich << " to another SELinux domain defined. Have you configured your " 951ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich "service correctly? https://source.android.com/security/selinux/" 961ea19eb44d58759ed65dc7aa8da8215e5f976858Nick Kralevich "device-policy#label_new_services_and_address_denials"; 97344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 98344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (rc < 0) { 9976af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Error() << "Could not get process context"; 100344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 101344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes return computed_context; 102344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 103344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 1041b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obesstatic void SetUpPidNamespace(const std::string& service_name) { 1051b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes constexpr unsigned int kSafeFlags = MS_NODEV | MS_NOEXEC | MS_NOSUID; 1061b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1071b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // It's OK to LOG(FATAL) in this function since it's running in the first 1081b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // child process. 1094bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen 1104bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // Recursively remount / as slave like zygote does so unmounting and mounting /proc 1114bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // doesn't interfere with the parent namespace's /proc mount. This will also 1124bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // prevent any other mounts/unmounts initiated by the service from interfering 1134bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // with the parent namespace but will still allow mount events from the parent 1144bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // namespace to propagate to the child. 1154bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen if (mount("rootfs", "/", nullptr, (MS_SLAVE | MS_REC), nullptr) == -1) { 1164bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen PLOG(FATAL) << "couldn't remount(/) recursively as slave for " << service_name; 1174bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen } 1184bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // umount() then mount() /proc. 1194bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen // Note that it is not sufficient to mount with MS_REMOUNT. 1204bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen if (umount("/proc") == -1) { 1214bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen PLOG(FATAL) << "couldn't umount(/proc) for " << service_name; 1224bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen } 1234bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen if (mount("", "/proc", "proc", kSafeFlags, "") == -1) { 1244bfdcb39329f778c46f73827f213c80b93c4e7d3Joe Tanen PLOG(FATAL) << "couldn't mount(/proc) for " << service_name; 1251b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1261b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1271b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (prctl(PR_SET_NAME, service_name.c_str()) == -1) { 128e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't set name for " << service_name; 1291b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1301b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1311b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t child_pid = fork(); 1321b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid == -1) { 133e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "couldn't fork init inside the PID namespace for " << service_name; 1341b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1351b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1361b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (child_pid > 0) { 1371b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // So that we exit with the right status. 1381b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes static int init_exitstatus = 0; 1391b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes signal(SIGTERM, [](int) { _exit(init_exitstatus); }); 1401b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1411b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t waited_pid; 1421b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes int status; 1431b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes while ((waited_pid = wait(&status)) > 0) { 1441b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This loop will end when there are no processes left inside the 1451b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespace or when the init process inside the PID namespace 1461b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // gets a signal. 1471b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (waited_pid == child_pid) { 1481b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes init_exitstatus = status; 1491b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1501b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1511b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (!WIFEXITED(init_exitstatus)) { 1521b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(EXIT_FAILURE); 1531b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1541b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes _exit(WEXITSTATUS(init_exitstatus)); 1551b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 1561b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 1571b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 1585e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherrystatic bool ExpandArgsAndExecv(const std::vector<std::string>& args) { 159344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes std::vector<std::string> expanded_args; 1605e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry std::vector<char*> c_strings; 1615e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry 162344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes expanded_args.resize(args.size()); 1635e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry c_strings.push_back(const_cast<char*>(args[0].data())); 164344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes for (std::size_t i = 1; i < args.size(); ++i) { 165344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!expand_props(args[i], &expanded_args[i])) { 166344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes LOG(FATAL) << args[0] << ": cannot expand '" << args[i] << "'"; 167344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 1685e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry c_strings.push_back(expanded_args[i].data()); 169344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 1705e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry c_strings.push_back(nullptr); 1715e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry 1725e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry return execv(c_strings[0], c_strings.data()) == 0; 173344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 174344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 1755938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherryunsigned long Service::next_start_order_ = 1; 1763b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherrybool Service::is_exec_service_running_ = false; 1775938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry 178cb0f9bbc855097e0c8248643015b837255fd569aTom CherryService::Service(const std::string& name, Subcontext* subcontext_for_restart_commands, 179cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry const std::vector<std::string>& args) 180cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry : Service(name, 0, 0, 0, {}, 0, 0, "", subcontext_for_restart_commands, args) {} 181bac3299720623f4226bca103b26260052732ad30Tom Cherry 182641ff0a4d8d05349d9c22f726a035a2936a2a94dWei WangService::Service(const std::string& name, unsigned flags, uid_t uid, gid_t gid, 183641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang const std::vector<gid_t>& supp_gids, const CapSet& capabilities, 184641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang unsigned namespace_flags, const std::string& seclabel, 185cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry Subcontext* subcontext_for_restart_commands, const std::vector<std::string>& args) 186641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang : name_(name), 187641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang classnames_({"default"}), 188641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang flags_(flags), 189641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang pid_(0), 190641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang crash_count_(0), 191641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang uid_(uid), 192641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang gid_(gid), 193641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang supp_gids_(supp_gids), 194641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang capabilities_(capabilities), 195641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang namespace_flags_(namespace_flags), 196641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang seclabel_(seclabel), 1979cbf57048cf0057f499bf1911e4ac3eba795becbTom Cherry onrestart_(false, subcontext_for_restart_commands, "<Service '" + name + "' onrestart>", 0, 1989cbf57048cf0057f499bf1911e4ac3eba795becbTom Cherry "onrestart", {}), 1997da548578c25683fe0082283303e16961df312daTom Cherry keychord_id_(0), 200641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_class_(IoSchedClass_NONE), 201641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang ioprio_pri_(0), 202641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang priority_(0), 203641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang oom_score_adjust_(-1000), 204d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea swappiness_(-1), 205d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea soft_limit_in_bytes_(-1), 206d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea limit_in_bytes_(-1), 2075938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry start_order_(0), 2089cbf57048cf0057f499bf1911e4ac3eba795becbTom Cherry args_(args) {} 209bac3299720623f4226bca103b26260052732ad30Tom Cherry 210bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::NotifyStateChange(const std::string& new_state) const { 211b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry if ((flags_ & SVC_TEMPORARY) != 0) { 212b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry // Services created by 'exec' are temporary and don't have properties tracking their state. 213bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 214bac3299720623f4226bca103b26260052732ad30Tom Cherry } 215bac3299720623f4226bca103b26260052732ad30Tom Cherry 2161c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string prop_name = "init.svc." + name_; 2171c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry property_set(prop_name, new_state); 2189605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes 2199605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (new_state == "running") { 2209605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes uint64_t start_ns = time_started_.time_since_epoch().count(); 221fed3373b5b671613c615b63800eb3977bb1911eaTom Cherry std::string boottime_property = "ro.boottime." + name_; 222fed3373b5b671613c615b63800eb3977bb1911eaTom Cherry if (GetProperty(boottime_property, "").empty()) { 223fed3373b5b671613c615b63800eb3977bb1911eaTom Cherry property_set(boottime_property, std::to_string(start_ns)); 224fed3373b5b671613c615b63800eb3977bb1911eaTom Cherry } 2259605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes } 226bac3299720623f4226bca103b26260052732ad30Tom Cherry} 227bac3299720623f4226bca103b26260052732ad30Tom Cherry 228ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughesvoid Service::KillProcessGroup(int signal) { 22933838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // If we've already seen a successful result from killProcessGroup*(), then we have removed 23033838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // the cgroup already and calling these functions a second time will simply result in an error. 23133838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // This is true regardless of which signal was sent. 23233838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry // These functions handle their own logging, so no additional logging is needed. 23333838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (!process_cgroup_empty_) { 23433838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry LOG(INFO) << "Sending signal " << signal << " to service '" << name_ << "' (pid " << pid_ 23533838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry << ") process group..."; 23633838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry int r; 23733838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (signal == SIGTERM) { 23833838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry r = killProcessGroupOnce(uid_, pid_, signal); 23933838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } else { 24033838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry r = killProcessGroup(uid_, pid_, signal); 24133838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } 24233838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry 24333838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry if (r == 0) process_cgroup_empty_ = true; 24433838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry } 245ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes} 246ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 247344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obesvoid Service::SetProcessAttributes() { 2487ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry for (const auto& rlimit : rlimits_) { 2497ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry if (setrlimit(rlimit.first, &rlimit.second) == -1) { 2507ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry LOG(FATAL) << StringPrintf("setrlimit(%d, {rlim_cur=%ld, rlim_max=%ld}) failed", 2517ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry rlimit.first, rlimit.second.rlim_cur, rlimit.second.rlim_max); 2527ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry } 2537ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry } 25424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes // Keep capabilites on uid change. 25524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any() && uid_) { 256f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez // If Android is running in a container, some securebits might already 257f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez // be locked, so don't change those. 258a72436067d5f88885e4b32fa7c5d22f1ea8c0756Ben Fennema unsigned long securebits = prctl(PR_GET_SECUREBITS); 259a72436067d5f88885e4b32fa7c5d22f1ea8c0756Ben Fennema if (securebits == -1UL) { 260f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez PLOG(FATAL) << "prctl(PR_GET_SECUREBITS) failed for " << name_; 261f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez } 262f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez securebits |= SECBIT_KEEP_CAPS | SECBIT_KEEP_CAPS_LOCKED; 263f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez if (prctl(PR_SET_SECUREBITS, securebits) != 0) { 264f5965519d183ff188273689d151bfc2cb20ece2aLuis Hector Chavez PLOG(FATAL) << "prctl(PR_SET_SECUREBITS) failed for " << name_; 26524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 26624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 26724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 268e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes // TODO: work out why this fails for `console` then upgrade to FATAL. 269e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes if (setpgid(0, getpid()) == -1) PLOG(ERROR) << "setpgid failed for " << name_; 270344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 271344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (gid_) { 272344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setgid(gid_) != 0) { 273e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setgid failed for " << name_; 274344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 275344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 27680960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich if (setgroups(supp_gids_.size(), &supp_gids_[0]) != 0) { 27780960d2a9a6e15931d946cc826dcb3d5bf68ca4fNick Kralevich PLOG(FATAL) << "setgroups failed for " << name_; 278344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 279344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (uid_) { 280344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setuid(uid_) != 0) { 281e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setuid failed for " << name_; 282344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 283344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 284344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (!seclabel_.empty()) { 285344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setexeccon(seclabel_.c_str()) < 0) { 286e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "cannot setexeccon('" << seclabel_ << "') for " << name_; 287344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 288344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 289344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (priority_ != 0) { 290344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes if (setpriority(PRIO_PROCESS, 0, priority_) != 0) { 291e18e7e5c43c39677c6d49f8f76893d720f90b4fbElliott Hughes PLOG(FATAL) << "setpriority failed for " << name_; 292344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 293344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes } 29424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (capabilities_.any()) { 29524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes if (!SetCapsForExec(capabilities_)) { 29624b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes LOG(FATAL) << "cannot set capabilities for " << name_; 29724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 29894fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez } else if (uid_) { 29994fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez // Inheritable caps can be non-zero when running in a container. 30094fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez if (!DropInheritableCaps()) { 30194fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez LOG(FATAL) << "cannot drop inheritable caps for " << name_; 30294fb5b0bef4ff7bd5c610ed5ebfad9c0ba41c62fLuis Hector Chavez } 30324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 304344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes} 305344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes 306dc97e3e091b404b23e7fe919b30e523565f3b1cePaul Crowleyvoid Service::Reap(const siginfo_t& siginfo) { 307bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_ONESHOT) || (flags_ & SVC_RESTART)) { 308ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 309bac3299720623f4226bca103b26260052732ad30Tom Cherry } 310bac3299720623f4226bca103b26260052732ad30Tom Cherry 31162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn // Remove any descriptor resources we may have created. 31262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 31362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::Clean, std::placeholders::_1)); 314bac3299720623f4226bca103b26260052732ad30Tom Cherry 315dc97e3e091b404b23e7fe919b30e523565f3b1cePaul Crowley for (const auto& f : reap_callbacks_) { 316dc97e3e091b404b23e7fe919b30e523565f3b1cePaul Crowley f(siginfo); 317dc97e3e091b404b23e7fe919b30e523565f3b1cePaul Crowley } 318dc97e3e091b404b23e7fe919b30e523565f3b1cePaul Crowley 3193b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry if (flags_ & SVC_EXEC) UnSetExec(); 3203b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 3213b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry if (flags_ & SVC_TEMPORARY) return; 322bac3299720623f4226bca103b26260052732ad30Tom Cherry 323bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 324bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RUNNING); 3255938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry start_order_ = 0; 326bac3299720623f4226bca103b26260052732ad30Tom Cherry 327bac3299720623f4226bca103b26260052732ad30Tom Cherry // Oneshot processes go into the disabled state on exit, 328bac3299720623f4226bca103b26260052732ad30Tom Cherry // except when manually restarted. 329bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_ONESHOT) && !(flags_ & SVC_RESTART)) { 330bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 331bac3299720623f4226bca103b26260052732ad30Tom Cherry } 332bac3299720623f4226bca103b26260052732ad30Tom Cherry 333bac3299720623f4226bca103b26260052732ad30Tom Cherry // Disabled and reset processes do not get restarted automatically. 334bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & (SVC_DISABLED | SVC_RESET)) { 335bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 336b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return; 337bac3299720623f4226bca103b26260052732ad30Tom Cherry } 338bac3299720623f4226bca103b26260052732ad30Tom Cherry 3399605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes // If we crash > 4 times in 4 minutes, reboot into recovery. 3409605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes boot_clock::time_point now = boot_clock::now(); 341bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((flags_ & SVC_CRITICAL) && !(flags_ & SVC_RESTART)) { 3429605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (now < time_crashed_ + 4min) { 3439605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes if (++crash_count_ > 4) { 344d8db7ab80d8a79c89393fa0c4ab343e85312d8d5Tom Cherry LOG(FATAL) << "critical process '" << name_ << "' exited 4 times in 4 minutes"; 345bac3299720623f4226bca103b26260052732ad30Tom Cherry } 346bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 347bac3299720623f4226bca103b26260052732ad30Tom Cherry time_crashed_ = now; 3489605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes crash_count_ = 1; 349bac3299720623f4226bca103b26260052732ad30Tom Cherry } 350bac3299720623f4226bca103b26260052732ad30Tom Cherry } 351bac3299720623f4226bca103b26260052732ad30Tom Cherry 352bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~SVC_RESTART); 353bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RESTARTING; 354bac3299720623f4226bca103b26260052732ad30Tom Cherry 355bac3299720623f4226bca103b26260052732ad30Tom Cherry // Execute all onrestart commands for this service. 356bac3299720623f4226bca103b26260052732ad30Tom Cherry onrestart_.ExecuteAllCommands(); 357bac3299720623f4226bca103b26260052732ad30Tom Cherry 358bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("restarting"); 359b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry return; 360bac3299720623f4226bca103b26260052732ad30Tom Cherry} 361bac3299720623f4226bca103b26260052732ad30Tom Cherry 362bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::DumpState() const { 363f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(INFO) << "service " << name_; 36481f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry LOG(INFO) << " class '" << Join(classnames_, " ") << "'"; 36581f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry LOG(INFO) << " exec " << Join(args_, " "); 36662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 36762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [] (const auto& info) { LOG(INFO) << *info; }); 368bac3299720623f4226bca103b26260052732ad30Tom Cherry} 369bac3299720623f4226bca103b26260052732ad30Tom Cherry 37089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseCapabilities(const std::vector<std::string>& args) { 37124b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_ = 0; 37224b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 373f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (!CapAmbientSupported()) { 37489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() 37589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry << "capabilities requested but the kernel does not support ambient capabilities"; 376f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 377f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes 378f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes unsigned int last_valid_cap = GetLastValidCap(); 379f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (last_valid_cap >= capabilities_.size()) { 380f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes LOG(WARNING) << "last valid run-time capability is larger than CAP_LAST_CAP"; 381f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 382f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes 38324b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 38424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes const std::string& arg = args[i]; 385f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes int res = LookupCap(arg); 386f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (res < 0) { 38789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << StringPrintf("invalid capability '%s'", arg.c_str()); 38824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 389f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes unsigned int cap = static_cast<unsigned int>(res); // |res| is >= 0. 390f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes if (cap > last_valid_cap) { 39189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << StringPrintf("capability '%s' not supported by the kernel", 39289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry arg.c_str()); 393f3f824ee42892fb69cb0d9b0557cd9c5aed357d2Jorge Lucangeli Obes } 39424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes capabilities_[cap] = true; 39524b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes } 39689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 39724b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes} 39824b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes 39989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseClass(const std::vector<std::string>& args) { 400641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang classnames_ = std::set<std::string>(args.begin() + 1, args.end()); 40189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 402b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 403bac3299720623f4226bca103b26260052732ad30Tom Cherry 40489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseConsole(const std::vector<std::string>& args) { 405b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CONSOLE; 40670daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = args.size() > 1 ? "/dev/" + args[1] : ""; 40789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 408b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 409bac3299720623f4226bca103b26260052732ad30Tom Cherry 41089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseCritical(const std::vector<std::string>& args) { 411b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_CRITICAL; 41289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 413b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 414bac3299720623f4226bca103b26260052732ad30Tom Cherry 41589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseDisabled(const std::vector<std::string>& args) { 416b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_DISABLED; 417b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_RC_DISABLED; 41889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 419b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 420bac3299720623f4226bca103b26260052732ad30Tom Cherry 42189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseGroup(const std::vector<std::string>& args) { 42211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto gid = DecodeUid(args[1]); 42311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 42489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to decode GID for '" << args[1] << "': " << gid.error(); 425517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 42611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid_ = *gid; 42711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry 428b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t n = 2; n < args.size(); n++) { 42911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid = DecodeUid(args[n]); 43011a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 43189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to decode GID for '" << args[n] << "': " << gid.error(); 432517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 43311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry supp_gids_.emplace_back(*gid); 434b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 43589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 436b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 437bac3299720623f4226bca103b26260052732ad30Tom Cherry 43889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParsePriority(const std::vector<std::string>& args) { 439da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes priority_ = 0; 440da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &priority_, 441dd34ca45ea80c519a579578562e73d5e7f86703bKeun-young Park static_cast<int>(ANDROID_PRIORITY_HIGHEST), // highest is negative 442dd34ca45ea80c519a579578562e73d5e7f86703bKeun-young Park static_cast<int>(ANDROID_PRIORITY_LOWEST))) { 44389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << StringPrintf("process priority value must be range %d - %d", 44489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry ANDROID_PRIORITY_HIGHEST, ANDROID_PRIORITY_LOWEST); 445081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv } 44689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 447081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv} 448081705c258efbe938d71c2022528d809fa6d42c5Vitalii Tomkiv 449e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven MorelandResult<Success> Service::ParseInterface(const std::vector<std::string>& args) { 450e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland const std::string& interface_name = args[1]; 451e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland const std::string& instance_name = args[2]; 452e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 453e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland const FQName fq_name = FQName(interface_name); 454e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland if (!fq_name.isValid()) { 455e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Error() << "Invalid fully-qualified name for interface '" << interface_name << "'"; 456e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 457e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 458e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland if (!fq_name.isFullyQualified()) { 459e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Error() << "Interface name not fully-qualified '" << interface_name << "'"; 460e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 461e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 462e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland if (fq_name.isValidValueName()) { 463e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Error() << "Interface name must not be a value name '" << interface_name << "'"; 464e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 465e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 466e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland const std::string fullname = interface_name + "/" + instance_name; 467e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 468e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland for (const auto& svc : ServiceList::GetInstance()) { 469e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland if (svc->interfaces().count(fullname) > 0) { 470e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Error() << "Interface '" << fullname << "' redefined in " << name() 471e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland << " but is already defined by " << svc->name(); 472e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 473e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland } 474e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 475e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland interfaces_.insert(fullname); 476e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 477e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland return Success(); 478e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland} 479e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland 48089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseIoprio(const std::vector<std::string>& args) { 481da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[2], &ioprio_pri_, 0, 7)) { 48289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "priority value must be range 0 - 7"; 483b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 484b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 485b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args[1] == "rt") { 486b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_RT; 487b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "be") { 488b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_BE; 489b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else if (args[1] == "idle") { 490b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry ioprio_class_ = IoSchedClass_IDLE; 491b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } else { 49289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "ioprio option usage: ioprio <rt|be|idle> <0-7>"; 493bac3299720623f4226bca103b26260052732ad30Tom Cherry } 494bac3299720623f4226bca103b26260052732ad30Tom Cherry 49589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 496b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 497bac3299720623f4226bca103b26260052732ad30Tom Cherry 49889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseKeycodes(const std::vector<std::string>& args) { 499b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (std::size_t i = 1; i < args.size(); i++) { 500da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes int code; 501da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (ParseInt(args[i], &code)) { 502da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes keycodes_.emplace_back(code); 503da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } else { 504da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes LOG(WARNING) << "ignoring invalid keycode: " << args[i]; 505da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes } 506bac3299720623f4226bca103b26260052732ad30Tom Cherry } 50789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 508b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 509b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 51089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseOneshot(const std::vector<std::string>& args) { 511b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry flags_ |= SVC_ONESHOT; 51289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 513b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 514b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 51589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseOnrestart(const std::vector<std::string>& args) { 516b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 1, args.end()); 517012c573e267b8dd70de14237cb470bd7301ee8eaTom Cherry int line = onrestart_.NumCommands() + 1; 51889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry if (auto result = onrestart_.AddCommand(str_args, line); !result) { 51989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "cannot add Onrestart command: " << result.error(); 52089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry } 52189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 522b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 523bac3299720623f4226bca103b26260052732ad30Tom Cherry 52489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseNamespace(const std::vector<std::string>& args) { 5251b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes for (size_t i = 1; i < args.size(); i++) { 5261b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (args[i] == "pid") { 5271b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWPID; 5281b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // PID namespaces require mount namespaces. 5291b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 5301b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else if (args[i] == "mnt") { 5311b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes namespace_flags_ |= CLONE_NEWNS; 5321b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 53389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "namespace must be 'pid' or 'mnt'"; 5341b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 5351b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 53689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 5371b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes} 5381b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 53989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseOomScoreAdjust(const std::vector<std::string>& args) { 540da46b392f10d2809b5696632f67485f272ec5698Elliott Hughes if (!ParseInt(args[1], &oom_score_adjust_, -1000, 1000)) { 54189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "oom_score_adjust value must be in range -1000 - +1000"; 542310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 54389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 544310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen} 545310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 5466f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven MorelandResult<Success> Service::ParseOverride(const std::vector<std::string>& args) { 5476f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland override_ = true; 5486f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland return Success(); 5496f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland} 5506f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland 55189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseMemcgSwappiness(const std::vector<std::string>& args) { 552d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!ParseInt(args[1], &swappiness_, 0)) { 55389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "swappiness value must be equal or greater than 0"; 554d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 55589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 556d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea} 557d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 55889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseMemcgLimitInBytes(const std::vector<std::string>& args) { 559d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!ParseInt(args[1], &limit_in_bytes_, 0)) { 56089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "limit_in_bytes value must be equal or greater than 0"; 561d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 56289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 563d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea} 564d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 56589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseMemcgSoftLimitInBytes(const std::vector<std::string>& args) { 566d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!ParseInt(args[1], &soft_limit_in_bytes_, 0)) { 56789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "soft_limit_in_bytes value must be equal or greater than 0"; 568d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 56989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 570d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea} 571d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 5727ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom CherryResult<Success> Service::ParseProcessRlimit(const std::vector<std::string>& args) { 5737ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry auto rlimit = ParseRlimit(args); 5747ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry if (!rlimit) return rlimit.error(); 5757ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry 5767ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry rlimits_.emplace_back(*rlimit); 5777ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry return Success(); 5787ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry} 5797ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry 58089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseSeclabel(const std::vector<std::string>& args) { 581b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry seclabel_ = args[1]; 58289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 583b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 584b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 58589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseSetenv(const std::vector<std::string>& args) { 5866de21f11125941ea1b94fdeec754bacea3916fd5Tom Cherry environment_vars_.emplace_back(args[1], args[2]); 58789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 588b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 589b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 59089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseShutdown(const std::vector<std::string>& args) { 591cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park if (args[1] == "critical") { 592cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park flags_ |= SVC_SHUTDOWN_CRITICAL; 59389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 594cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park } 59589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Invalid shutdown option"; 596cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park} 597cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park 59862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyntemplate <typename T> 59989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::AddDescriptor(const std::vector<std::string>& args) { 60062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn int perm = args.size() > 3 ? std::strtoul(args[3].c_str(), 0, 8) : -1; 60111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<uid_t> uid = 0; 60211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<gid_t> gid = 0; 60362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::string context = args.size() > 6 ? args[6] : ""; 60462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 605517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (args.size() > 4) { 60611a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry uid = DecodeUid(args[4]); 60711a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!uid) { 60889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to find UID for '" << args[4] << "': " << uid.error(); 609517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 610517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 611517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry 612517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry if (args.size() > 5) { 61311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid = DecodeUid(args[5]); 61411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 61589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to find GID for '" << args[5] << "': " << gid.error(); 616517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 617517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 618517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry 61911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto descriptor = std::make_unique<T>(args[1], args[2], *uid, *gid, perm, context); 62062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 62162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn auto old = 62262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::find_if(descriptors_.begin(), descriptors_.end(), 62362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn [&descriptor] (const auto& other) { return descriptor.get() == other.get(); }); 62462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 62562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (old != descriptors_.end()) { 62689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "duplicate descriptor " << args[1] << " " << args[2]; 62762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 62862767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 62962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn descriptors_.emplace_back(std::move(descriptor)); 63089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 63162767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 63262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn 63362767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 63489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseSocket(const std::vector<std::string>& args) { 63581f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry if (!StartsWith(args[2], "dgram") && !StartsWith(args[2], "stream") && 63681f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry !StartsWith(args[2], "seqpacket")) { 63789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "socket type must be 'dgram', 'stream' or 'seqpacket'"; 638bac3299720623f4226bca103b26260052732ad30Tom Cherry } 63989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return AddDescriptor<SocketInfo>(args); 64062767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn} 641b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 64262767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn// name type perm [ uid gid context ] 64389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseFile(const std::vector<std::string>& args) { 64462767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if (args[2] != "r" && args[2] != "w" && args[2] != "rw") { 64589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "file type must be 'r', 'w' or 'rw'"; 64662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 64762767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn if ((args[1][0] != '/') || (args[1].find("../") != std::string::npos)) { 64889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "file name must not be relative"; 64962767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn } 65089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return AddDescriptor<FileInfo>(args); 651bac3299720623f4226bca103b26260052732ad30Tom Cherry} 652bac3299720623f4226bca103b26260052732ad30Tom Cherry 65389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseUser(const std::vector<std::string>& args) { 65411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto uid = DecodeUid(args[1]); 65511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!uid) { 65689bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "Unable to find UID for '" << args[1] << "': " << uid.error(); 657517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 65811a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry uid_ = *uid; 65989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 660b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 661b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 66289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseWritepid(const std::vector<std::string>& args) { 663b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry writepid_files_.assign(args.begin() + 1, args.end()); 66489bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 665b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 666b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 667177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obesclass Service::OptionParserMap : public KeywordMap<OptionParser> { 668ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry public: 669ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry OptionParserMap() {} 670ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry 671ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry private: 672ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherry const Map& map() const override; 673b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry}; 674b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 675ad54d094cde838d19034b8325705b22dca0e9af0Tom Cherryconst Service::OptionParserMap::Map& Service::OptionParserMap::map() const { 676b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry constexpr std::size_t kMax = std::numeric_limits<std::size_t>::max(); 677641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang // clang-format off 678177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const Map option_parsers = { 67924b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {"capabilities", 68024b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes {1, kMax, &Service::ParseCapabilities}}, 681641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang {"class", {1, kMax, &Service::ParseClass}}, 682177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"console", {0, 1, &Service::ParseConsole}}, 683177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"critical", {0, 0, &Service::ParseCritical}}, 684177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"disabled", {0, 0, &Service::ParseDisabled}}, 685177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"group", {1, NR_SVC_SUPP_GIDS + 1, &Service::ParseGroup}}, 686e055d73396ecfba1dafd41fd2ec0cb3353c81e6aSteven Moreland {"interface", {2, 2, &Service::ParseInterface}}, 687177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"ioprio", {2, 2, &Service::ParseIoprio}}, 688177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"priority", {1, 1, &Service::ParsePriority}}, 689177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"keycodes", {1, kMax, &Service::ParseKeycodes}}, 690177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"oneshot", {0, 0, &Service::ParseOneshot}}, 691177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"onrestart", {1, kMax, &Service::ParseOnrestart}}, 6926f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland {"override", {0, 0, &Service::ParseOverride}}, 693310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {"oom_score_adjust", 694310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen {1, 1, &Service::ParseOomScoreAdjust}}, 695d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {"memcg.swappiness", 696d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {1, 1, &Service::ParseMemcgSwappiness}}, 697d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {"memcg.soft_limit_in_bytes", 698d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {1, 1, &Service::ParseMemcgSoftLimitInBytes}}, 699d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {"memcg.limit_in_bytes", 700d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea {1, 1, &Service::ParseMemcgLimitInBytes}}, 701177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"namespace", {1, 2, &Service::ParseNamespace}}, 7027ac013de7edc7ec6570ff6a5b6bd3bdce68b769cTom Cherry {"rlimit", {3, 3, &Service::ParseProcessRlimit}}, 703177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"seclabel", {1, 1, &Service::ParseSeclabel}}, 704177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"setenv", {2, 2, &Service::ParseSetenv}}, 705cccb34fce8798f2a359c6eb0e394ef9460673629Keun-young Park {"shutdown", {1, 1, &Service::ParseShutdown}}, 706177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"socket", {3, 6, &Service::ParseSocket}}, 707978fd0ea254f11f84e38b41a74bbe70c81edc197Mark Salyzyn {"file", {2, 2, &Service::ParseFile}}, 708177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"user", {1, 1, &Service::ParseUser}}, 709177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes {"writepid", {1, kMax, &Service::ParseWritepid}}, 710b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry }; 711641ff0a4d8d05349d9c22f726a035a2936a2a94dWei Wang // clang-format on 712177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes return option_parsers; 713b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 714b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 71589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> Service::ParseLine(const std::vector<std::string>& args) { 716177b27d4f5bfa498cc46aad24d9375d65630bea0Jorge Lucangeli Obes static const OptionParserMap parser_map; 71789bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry auto parser = parser_map.FindFunction(args); 718b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 71976af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry if (!parser) return parser.error(); 720b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 72189bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return std::invoke(*parser, this, args); 722b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 723b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 72476af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom CherryResult<Success> Service::ExecStart() { 7253b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry flags_ |= SVC_ONESHOT; 726b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 72776af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry if (auto result = Start(); !result) { 72876af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return result; 729b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry } 7303b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 7313b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry flags_ |= SVC_EXEC; 7323b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry is_exec_service_running_ = true; 7333b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 7343b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry LOG(INFO) << "SVC_EXEC pid " << pid_ << " (uid " << uid_ << " gid " << gid_ << "+" 7353b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry << supp_gids_.size() << " context " << (!seclabel_.empty() ? seclabel_ : "default") 7363b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry << ") started; waiting..."; 7373b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry 73876af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 739b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry} 740b27004aa05039b5196f1e878169dca41b68aadd6Tom Cherry 74176af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom CherryResult<Success> Service::Start() { 742990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu bool disabled = (flags_ & (SVC_DISABLED | SVC_RESET)); 743bac3299720623f4226bca103b26260052732ad30Tom Cherry // Starting a service removes it from the disabled or reset state and 744bac3299720623f4226bca103b26260052732ad30Tom Cherry // immediately takes it out of the restarting state if it was in there. 745bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= (~(SVC_DISABLED|SVC_RESTARTING|SVC_RESET|SVC_RESTART|SVC_DISABLED_START)); 746bac3299720623f4226bca103b26260052732ad30Tom Cherry 747bac3299720623f4226bca103b26260052732ad30Tom Cherry // Running processes require no additional work --- if they're in the 748bac3299720623f4226bca103b26260052732ad30Tom Cherry // process of exiting, we've ensured that they will immediately restart 749990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu // on exit, unless they are ONESHOT. For ONESHOT service, if it's in 750990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu // stopping status, we just set SVC_RESTART flag so it will get restarted 751990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu // in Reap(). 752bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 753990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu if ((flags_ & SVC_ONESHOT) && disabled) { 754990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu flags_ |= SVC_RESTART; 755990d43cb82ed95cf16d5bfb688cfc39b29defd8bTao Wu } 75676af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry // It is not an error to try to start a service that is already running. 75776af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 758bac3299720623f4226bca103b26260052732ad30Tom Cherry } 759bac3299720623f4226bca103b26260052732ad30Tom Cherry 760bac3299720623f4226bca103b26260052732ad30Tom Cherry bool needs_console = (flags_ & SVC_CONSOLE); 76170daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (needs_console) { 76270daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (console_.empty()) { 76370daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman console_ = default_console; 76470daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 76570daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman 76624ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido // Make sure that open call succeeds to ensure a console driver is 76724ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido // properly registered for the device node 76824ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido int console_fd = open(console_.c_str(), O_RDWR | O_CLOEXEC); 76924ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido if (console_fd < 0) { 77070daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman flags_ |= SVC_DISABLED; 77176af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return ErrnoError() << "Couldn't open console '" << console_ << "'"; 77270daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman } 77324ef8601c203a28b85a5e9168e5bada713e6a8f1Adrian Salido close(console_fd); 774bac3299720623f4226bca103b26260052732ad30Tom Cherry } 775bac3299720623f4226bca103b26260052732ad30Tom Cherry 776bac3299720623f4226bca103b26260052732ad30Tom Cherry struct stat sb; 777bac3299720623f4226bca103b26260052732ad30Tom Cherry if (stat(args_[0].c_str(), &sb) == -1) { 778bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED; 77976af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return ErrnoError() << "Cannot find '" << args_[0] << "'"; 780bac3299720623f4226bca103b26260052732ad30Tom Cherry } 781bac3299720623f4226bca103b26260052732ad30Tom Cherry 782bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string scon; 783bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!seclabel_.empty()) { 784bac3299720623f4226bca103b26260052732ad30Tom Cherry scon = seclabel_; 785bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 78676af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry auto result = ComputeContextFromExecutable(name_, args_[0]); 78776af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry if (!result) { 78876af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return result.error(); 789bac3299720623f4226bca103b26260052732ad30Tom Cherry } 79076af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry scon = *result; 791bac3299720623f4226bca103b26260052732ad30Tom Cherry } 792bac3299720623f4226bca103b26260052732ad30Tom Cherry 793a285dac9c0b95a0351dfa98dde60c74a1445dc57Wei Wang LOG(INFO) << "starting service '" << name_ << "'..."; 794bac3299720623f4226bca103b26260052732ad30Tom Cherry 7951b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid_t pid = -1; 7961b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_) { 797344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes pid = clone(nullptr, nullptr, namespace_flags_ | SIGCHLD, nullptr); 7981b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } else { 7991b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes pid = fork(); 8001b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 8011b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 802bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid == 0) { 803bac3299720623f4226bca103b26260052732ad30Tom Cherry umask(077); 804bac3299720623f4226bca103b26260052732ad30Tom Cherry 8051b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes if (namespace_flags_ & CLONE_NEWPID) { 8061b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // This will fork again to run an init process inside the PID 8071b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes // namespace. 8081b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes SetUpPidNamespace(name_); 8091b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes } 8101b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes 8116de21f11125941ea1b94fdeec754bacea3916fd5Tom Cherry for (const auto& [key, value] : environment_vars_) { 8126de21f11125941ea1b94fdeec754bacea3916fd5Tom Cherry setenv(key.c_str(), value.c_str(), 1); 813bac3299720623f4226bca103b26260052732ad30Tom Cherry } 814bac3299720623f4226bca103b26260052732ad30Tom Cherry 81562767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::for_each(descriptors_.begin(), descriptors_.end(), 81662767fe29f8aaf62470781a3cf419ba11187d178Mark Salyzyn std::bind(&DescriptorInfo::CreateAndPublish, std::placeholders::_1, scon)); 817bac3299720623f4226bca103b26260052732ad30Tom Cherry 8180828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // See if there were "writepid" instructions to write to files under /dev/cpuset/. 8190828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko auto cpuset_predicate = [](const std::string& path) { 82081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry return StartsWith(path, "/dev/cpuset/"); 8210828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko }; 8220828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko auto iter = std::find_if(writepid_files_.begin(), writepid_files_.end(), cpuset_predicate); 8230828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (iter == writepid_files_.end()) { 8240828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // There were no "writepid" instructions for cpusets, check if the system default 8250828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // cpuset is specified to be used for the process. 82681f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry std::string default_cpuset = GetProperty("ro.cpuset.default", ""); 8270828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (!default_cpuset.empty()) { 8280828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // Make sure the cpuset name starts and ends with '/'. 8290828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko // A single '/' means the 'root' cpuset. 8300828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (default_cpuset.front() != '/') { 8310828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko default_cpuset.insert(0, 1, '/'); 8320828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 8330828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko if (default_cpuset.back() != '/') { 8340828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko default_cpuset.push_back('/'); 8350828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 8360828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko writepid_files_.push_back( 8370828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko StringPrintf("/dev/cpuset%stasks", default_cpuset.c_str())); 8380828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 8390828676dff618c8ecc9852cb319543570b3a2e72Alex Vakulenko } 8401c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string pid_str = std::to_string(getpid()); 841bac3299720623f4226bca103b26260052732ad30Tom Cherry for (const auto& file : writepid_files_) { 842b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!WriteStringToFile(pid_str, file)) { 843f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes PLOG(ERROR) << "couldn't write " << pid_str << " to " << file; 844bac3299720623f4226bca103b26260052732ad30Tom Cherry } 845bac3299720623f4226bca103b26260052732ad30Tom Cherry } 846bac3299720623f4226bca103b26260052732ad30Tom Cherry 847bac3299720623f4226bca103b26260052732ad30Tom Cherry if (ioprio_class_ != IoSchedClass_NONE) { 848bac3299720623f4226bca103b26260052732ad30Tom Cherry if (android_set_ioprio(getpid(), ioprio_class_, ioprio_pri_)) { 849344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "failed to set pid " << getpid() 850f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes << " ioprio=" << ioprio_class_ << "," << ioprio_pri_; 851bac3299720623f4226bca103b26260052732ad30Tom Cherry } 852bac3299720623f4226bca103b26260052732ad30Tom Cherry } 853bac3299720623f4226bca103b26260052732ad30Tom Cherry 854bac3299720623f4226bca103b26260052732ad30Tom Cherry if (needs_console) { 855bac3299720623f4226bca103b26260052732ad30Tom Cherry setsid(); 856bac3299720623f4226bca103b26260052732ad30Tom Cherry OpenConsole(); 857bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 858bac3299720623f4226bca103b26260052732ad30Tom Cherry ZapStdio(); 859bac3299720623f4226bca103b26260052732ad30Tom Cherry } 860bac3299720623f4226bca103b26260052732ad30Tom Cherry 861344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // As requested, set our gid, supplemental gids, uid, context, and 862344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes // priority. Aborts on failure. 863344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes SetProcessAttributes(); 864bac3299720623f4226bca103b26260052732ad30Tom Cherry 8655e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry if (!ExpandArgsAndExecv(args_)) { 8665e405cacb1f3ef2265fcc71dbbf6a39c1e7dc1c1Tom Cherry PLOG(ERROR) << "cannot execve('" << args_[0] << "')"; 867bac3299720623f4226bca103b26260052732ad30Tom Cherry } 868bac3299720623f4226bca103b26260052732ad30Tom Cherry 869bac3299720623f4226bca103b26260052732ad30Tom Cherry _exit(127); 870bac3299720623f4226bca103b26260052732ad30Tom Cherry } 871bac3299720623f4226bca103b26260052732ad30Tom Cherry 872bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid < 0) { 873bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = 0; 87476af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return ErrnoError() << "Failed to fork"; 875bac3299720623f4226bca103b26260052732ad30Tom Cherry } 876bac3299720623f4226bca103b26260052732ad30Tom Cherry 877310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (oom_score_adjust_ != -1000) { 8781c3a53f03ca3c2c647f83cd8b8ae7e18c5c7bc69Tom Cherry std::string oom_str = std::to_string(oom_score_adjust_); 879310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen std::string oom_file = StringPrintf("/proc/%d/oom_score_adj", pid); 880310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen if (!WriteStringToFile(oom_str, oom_file)) { 881310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen PLOG(ERROR) << "couldn't write oom_score_adj: " << strerror(errno); 882310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 883310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen } 884310f6704d0dfe9ca4cfb153ce8e4212cc7596190Marco Nelissen 8859605a945f7a497c0307b512b9cd762f2d23973caElliott Hughes time_started_ = boot_clock::now(); 886bac3299720623f4226bca103b26260052732ad30Tom Cherry pid_ = pid; 887bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_RUNNING; 8885938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry start_order_ = next_start_order_++; 88933838b1156cd1a5f8eec94756bee9e030a3dd2ebTom Cherry process_cgroup_empty_ = false; 890ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 891ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes errno = -createProcessGroup(uid_, pid_); 892ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes if (errno != 0) { 893344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes PLOG(ERROR) << "createProcessGroup(" << uid_ << ", " << pid_ << ") failed for service '" 894344d01f99f6049565e4342b4c4202bd9ab96340bJorge Lucangeli Obes << name_ << "'"; 895d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } else { 896d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (swappiness_ != -1) { 897d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!setProcessGroupSwappiness(uid_, pid_, swappiness_)) { 898d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea PLOG(ERROR) << "setProcessGroupSwappiness failed"; 899d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 900d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 901d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 902d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (soft_limit_in_bytes_ != -1) { 903d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!setProcessGroupSoftLimit(uid_, pid_, soft_limit_in_bytes_)) { 904d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea PLOG(ERROR) << "setProcessGroupSoftLimit failed"; 905d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 906d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 907d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea 908d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (limit_in_bytes_ != -1) { 909d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea if (!setProcessGroupLimit(uid_, pid_, limit_in_bytes_)) { 910d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea PLOG(ERROR) << "setProcessGroupLimit failed"; 911d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 912d485226951013247dbb502fef7edbc6cf83acb0fRobert Benea } 913ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes } 914bac3299720623f4226bca103b26260052732ad30Tom Cherry 915bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("running"); 91676af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 917bac3299720623f4226bca103b26260052732ad30Tom Cherry} 918bac3299720623f4226bca103b26260052732ad30Tom Cherry 91976af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom CherryResult<Success> Service::StartIfNotDisabled() { 920bac3299720623f4226bca103b26260052732ad30Tom Cherry if (!(flags_ & SVC_DISABLED)) { 921bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 922bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 923bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= SVC_DISABLED_START; 924bac3299720623f4226bca103b26260052732ad30Tom Cherry } 92576af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 926bac3299720623f4226bca103b26260052732ad30Tom Cherry} 927bac3299720623f4226bca103b26260052732ad30Tom Cherry 92876af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom CherryResult<Success> Service::Enable() { 929bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_DISABLED | SVC_RC_DISABLED); 930bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_DISABLED_START) { 931bac3299720623f4226bca103b26260052732ad30Tom Cherry return Start(); 932bac3299720623f4226bca103b26260052732ad30Tom Cherry } 93376af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry return Success(); 934bac3299720623f4226bca103b26260052732ad30Tom Cherry} 935bac3299720623f4226bca103b26260052732ad30Tom Cherry 936bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Reset() { 937bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESET); 938bac3299720623f4226bca103b26260052732ad30Tom Cherry} 939bac3299720623f4226bca103b26260052732ad30Tom Cherry 940bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Stop() { 941bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_DISABLED); 942bac3299720623f4226bca103b26260052732ad30Tom Cherry} 943bac3299720623f4226bca103b26260052732ad30Tom Cherry 944b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNETvoid Service::Terminate() { 945b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 946b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET flags_ |= SVC_DISABLED; 947b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET if (pid_) { 948ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGTERM); 949b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET NotifyStateChange("stopping"); 950b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET } 951b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET} 952b7e03e82b89a30b09fea88eaf2a5638df1017cf6Bertrand SIMONNET 953bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::Restart() { 954bac3299720623f4226bca103b26260052732ad30Tom Cherry if (flags_ & SVC_RUNNING) { 955bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Stop, wait, then start the service. */ 956bac3299720623f4226bca103b26260052732ad30Tom Cherry StopOrReset(SVC_RESTART); 957bac3299720623f4226bca103b26260052732ad30Tom Cherry } else if (!(flags_ & SVC_RESTARTING)) { 958bac3299720623f4226bca103b26260052732ad30Tom Cherry /* Just start the service since it's not running. */ 95976af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry if (auto result = Start(); !result) { 96076af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry LOG(ERROR) << "Could not restart '" << name_ << "': " << result.error(); 96176af7e6a0c4ce7759e6cc5994b5496ddb09035eeTom Cherry } 962bac3299720623f4226bca103b26260052732ad30Tom Cherry } /* else: Service is restarting anyways. */ 963bac3299720623f4226bca103b26260052732ad30Tom Cherry} 964bac3299720623f4226bca103b26260052732ad30Tom Cherry 965ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes// The how field should be either SVC_DISABLED, SVC_RESET, or SVC_RESTART. 966bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::StopOrReset(int how) { 967ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // The service is still SVC_RUNNING until its process exits, but if it has 968ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // already exited it shoudn't attempt a restart yet. 969bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); 970bac3299720623f4226bca103b26260052732ad30Tom Cherry 971bac3299720623f4226bca103b26260052732ad30Tom Cherry if ((how != SVC_DISABLED) && (how != SVC_RESET) && (how != SVC_RESTART)) { 972ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // An illegal flag: default to SVC_DISABLED. 973bac3299720623f4226bca103b26260052732ad30Tom Cherry how = SVC_DISABLED; 974bac3299720623f4226bca103b26260052732ad30Tom Cherry } 975ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes 976ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes // If the service has not yet started, prevent it from auto-starting with its class. 977bac3299720623f4226bca103b26260052732ad30Tom Cherry if (how == SVC_RESET) { 978bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= (flags_ & SVC_RC_DISABLED) ? SVC_DISABLED : SVC_RESET; 979bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 980bac3299720623f4226bca103b26260052732ad30Tom Cherry flags_ |= how; 981bac3299720623f4226bca103b26260052732ad30Tom Cherry } 98284b856d90167d567238af95fceade30a0dc93d58Tao Wu // Make sure it's in right status when a restart immediately follow a 98384b856d90167d567238af95fceade30a0dc93d58Tao Wu // stop/reset or vice versa. 98484b856d90167d567238af95fceade30a0dc93d58Tao Wu if (how == SVC_RESTART) { 98584b856d90167d567238af95fceade30a0dc93d58Tao Wu flags_ &= (~(SVC_DISABLED | SVC_RESET)); 98684b856d90167d567238af95fceade30a0dc93d58Tao Wu } else { 98784b856d90167d567238af95fceade30a0dc93d58Tao Wu flags_ &= (~SVC_RESTART); 98884b856d90167d567238af95fceade30a0dc93d58Tao Wu } 989bac3299720623f4226bca103b26260052732ad30Tom Cherry 990bac3299720623f4226bca103b26260052732ad30Tom Cherry if (pid_) { 991ad8e94e017173471e90c704eb7d8de5a14712aa7Elliott Hughes KillProcessGroup(SIGKILL); 992bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopping"); 993bac3299720623f4226bca103b26260052732ad30Tom Cherry } else { 994bac3299720623f4226bca103b26260052732ad30Tom Cherry NotifyStateChange("stopped"); 995bac3299720623f4226bca103b26260052732ad30Tom Cherry } 996bac3299720623f4226bca103b26260052732ad30Tom Cherry} 997bac3299720623f4226bca103b26260052732ad30Tom Cherry 998bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::ZapStdio() const { 999bac3299720623f4226bca103b26260052732ad30Tom Cherry int fd; 1000bac3299720623f4226bca103b26260052732ad30Tom Cherry fd = open("/dev/null", O_RDWR); 1001bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 1002bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 1003bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 1004bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 1005bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1006bac3299720623f4226bca103b26260052732ad30Tom Cherry 1007bac3299720623f4226bca103b26260052732ad30Tom Cherryvoid Service::OpenConsole() const { 100870daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman int fd = open(console_.c_str(), O_RDWR); 100970daa67062c016eea1a30be2e1de0dcba1d23a13Viorel Suman if (fd == -1) fd = open("/dev/null", O_RDWR); 1010bac3299720623f4226bca103b26260052732ad30Tom Cherry ioctl(fd, TIOCSCTTY, 0); 1011bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 0); 1012bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 1); 1013bac3299720623f4226bca103b26260052732ad30Tom Cherry dup2(fd, 2); 1014bac3299720623f4226bca103b26260052732ad30Tom Cherry close(fd); 1015bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1016bac3299720623f4226bca103b26260052732ad30Tom Cherry 1017911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom CherryServiceList::ServiceList() {} 1018bac3299720623f4226bca103b26260052732ad30Tom Cherry 1019911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom CherryServiceList& ServiceList::GetInstance() { 1020911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry static ServiceList instance; 1021bac3299720623f4226bca103b26260052732ad30Tom Cherry return instance; 1022bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1023bac3299720623f4226bca103b26260052732ad30Tom Cherry 1024911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryvoid ServiceList::AddService(std::unique_ptr<Service> service) { 1025b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry services_.emplace_back(std::move(service)); 1026bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1027bac3299720623f4226bca103b26260052732ad30Tom Cherry 10283b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherrystd::unique_ptr<Service> Service::MakeTemporaryOneshotService(const std::vector<std::string>& args) { 1029bac3299720623f4226bca103b26260052732ad30Tom Cherry // Parse the arguments: exec [SECLABEL [UID [GID]*] --] COMMAND ARGS... 1030bac3299720623f4226bca103b26260052732ad30Tom Cherry // SECLABEL can be a - to denote default 1031bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t command_arg = 1; 1032bac3299720623f4226bca103b26260052732ad30Tom Cherry for (std::size_t i = 1; i < args.size(); ++i) { 1033bac3299720623f4226bca103b26260052732ad30Tom Cherry if (args[i] == "--") { 1034bac3299720623f4226bca103b26260052732ad30Tom Cherry command_arg = i + 1; 1035bac3299720623f4226bca103b26260052732ad30Tom Cherry break; 1036bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1037bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1038bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4 + NR_SVC_SUPP_GIDS) { 1039f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called with too many supplementary group ids"; 1040bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 1041bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1042bac3299720623f4226bca103b26260052732ad30Tom Cherry 1043bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg >= args.size()) { 1044f86b5a6b90619e02d1d034ef7b0adc3b439f4abbElliott Hughes LOG(ERROR) << "exec called without command"; 1045bac3299720623f4226bca103b26260052732ad30Tom Cherry return nullptr; 1046bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1047bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<std::string> str_args(args.begin() + command_arg, args.end()); 1048bac3299720623f4226bca103b26260052732ad30Tom Cherry 10493b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry static size_t exec_count = 0; 10503b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry exec_count++; 10513b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry std::string name = "exec " + std::to_string(exec_count) + " (" + Join(str_args, " ") + ")"; 105286e31a81238fb30d113947e7689a38daf49097f3Tom Cherry 10533b81f2d623c6cba45ad07fa91338d346d9b96482Tom Cherry unsigned flags = SVC_ONESHOT | SVC_TEMPORARY; 105424b29132a017f7fbfd009c3e6aec499d1b815dbfJorge Lucangeli Obes CapSet no_capabilities; 10551b3fa3d6506d04570aab60147b0ec743e38c8796Jorge Lucangeli Obes unsigned namespace_flags = 0; 1056bac3299720623f4226bca103b26260052732ad30Tom Cherry 1057bac3299720623f4226bca103b26260052732ad30Tom Cherry std::string seclabel = ""; 1058bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 2 && args[1] != "-") { 1059bac3299720623f4226bca103b26260052732ad30Tom Cherry seclabel = args[1]; 1060bac3299720623f4226bca103b26260052732ad30Tom Cherry } 106111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<uid_t> uid = 0; 1062bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 3) { 106311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry uid = DecodeUid(args[2]); 106411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!uid) { 106511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry LOG(ERROR) << "Unable to decode UID for '" << args[2] << "': " << uid.error(); 1066517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1067517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 1068bac3299720623f4226bca103b26260052732ad30Tom Cherry } 106911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry Result<gid_t> gid = 0; 1070bac3299720623f4226bca103b26260052732ad30Tom Cherry std::vector<gid_t> supp_gids; 1071bac3299720623f4226bca103b26260052732ad30Tom Cherry if (command_arg > 4) { 107211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry gid = DecodeUid(args[3]); 107311a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!gid) { 107411a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry LOG(ERROR) << "Unable to decode GID for '" << args[3] << "': " << gid.error(); 1075517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1076517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 1077bac3299720623f4226bca103b26260052732ad30Tom Cherry std::size_t nr_supp_gids = command_arg - 1 /* -- */ - 4 /* exec SECLABEL UID GID */; 1078bac3299720623f4226bca103b26260052732ad30Tom Cherry for (size_t i = 0; i < nr_supp_gids; ++i) { 107911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry auto supp_gid = DecodeUid(args[4 + i]); 108011a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry if (!supp_gid) { 108111a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry LOG(ERROR) << "Unable to decode GID for '" << args[4 + i] 108211a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry << "': " << supp_gid.error(); 1083517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry return nullptr; 1084517e1f17cfec2143d4d10a64b1496a550acf3ea2Tom Cherry } 108511a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry supp_gids.push_back(*supp_gid); 1086bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1087bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1088bac3299720623f4226bca103b26260052732ad30Tom Cherry 108911a3aeeae3dc887b889d4086d4d26d95c324c08dTom Cherry return std::make_unique<Service>(name, flags, *uid, *gid, supp_gids, no_capabilities, 1090cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry namespace_flags, seclabel, nullptr, str_args); 1091bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1092bac3299720623f4226bca103b26260052732ad30Tom Cherry 10935938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry// Shutdown services in the opposite order that they were started. 1094911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryconst std::vector<Service*> ServiceList::services_in_shutdown_order() const { 10955938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry std::vector<Service*> shutdown_services; 10965938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry for (const auto& service : services_) { 10975938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry if (service->start_order() > 0) shutdown_services.emplace_back(service.get()); 10985938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry } 10995938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry std::sort(shutdown_services.begin(), shutdown_services.end(), 11005938379e910c4cbd7ed2429901bb3c45e62405d4Tom Cherry [](const auto& a, const auto& b) { return a->start_order() > b->start_order(); }); 1101911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry return shutdown_services; 1102bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1103bac3299720623f4226bca103b26260052732ad30Tom Cherry 1104911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryvoid ServiceList::RemoveService(const Service& svc) { 1105bac3299720623f4226bca103b26260052732ad30Tom Cherry auto svc_it = std::find_if(services_.begin(), services_.end(), 1106bac3299720623f4226bca103b26260052732ad30Tom Cherry [&svc] (const std::unique_ptr<Service>& s) { 1107bac3299720623f4226bca103b26260052732ad30Tom Cherry return svc.name() == s->name(); 1108bac3299720623f4226bca103b26260052732ad30Tom Cherry }); 1109bac3299720623f4226bca103b26260052732ad30Tom Cherry if (svc_it == services_.end()) { 1110bac3299720623f4226bca103b26260052732ad30Tom Cherry return; 1111bac3299720623f4226bca103b26260052732ad30Tom Cherry } 1112bac3299720623f4226bca103b26260052732ad30Tom Cherry 1113bac3299720623f4226bca103b26260052732ad30Tom Cherry services_.erase(svc_it); 1114bac3299720623f4226bca103b26260052732ad30Tom Cherry} 1115bac3299720623f4226bca103b26260052732ad30Tom Cherry 1116911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherryvoid ServiceList::DumpState() const { 1117b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry for (const auto& s : services_) { 1118b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry s->DumpState(); 1119b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1120b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1121b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 112289bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> ServiceParser::ParseSection(std::vector<std::string>&& args, 112389bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry const std::string& filename, int line) { 1124b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (args.size() < 3) { 112589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "services must have a name and a program"; 1126b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1127b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1128b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry const std::string& name = args[1]; 1129b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (!IsValidName(name)) { 113089bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Error() << "invalid service name '" << name << "'"; 1131b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 1132b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1133cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry Subcontext* restart_action_subcontext = nullptr; 1134cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry if (subcontexts_) { 1135cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry for (auto& subcontext : *subcontexts_) { 1136579e682628805dd9c3f8c96765c0beb3f56f1494Elliott Hughes if (StartsWith(filename, subcontext.path_prefix())) { 1137cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry restart_action_subcontext = &subcontext; 1138cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry break; 1139cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry } 1140cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry } 1141cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry } 1142cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry 1143b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry std::vector<std::string> str_args(args.begin() + 2, args.end()); 1144cb0f9bbc855097e0c8248643015b837255fd569aTom Cherry service_ = std::make_unique<Service>(name, restart_action_subcontext, str_args); 114589bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return Success(); 1146b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1147b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 114889bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom CherryResult<Success> ServiceParser::ParseLineSection(std::vector<std::string>&& args, int line) { 114989bcc85edfff4a2b2378f638ab90b2f7e19a8472Tom Cherry return service_ ? service_->ParseLine(std::move(args)) : Success(); 1150b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1151b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 11527d0a5c3656ee56eb81e442b58063d500b4f506e0Steven MorelandResult<Success> ServiceParser::EndSection() { 1153b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry if (service_) { 11545e1bea30b924661878c6fac4ec14b18e5ba17773Steven Moreland Service* old_service = service_list_->FindService(service_->name()); 11555e1bea30b924661878c6fac4ec14b18e5ba17773Steven Moreland if (old_service) { 11566f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland if (!service_->is_override()) { 11576f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland return Error() << "ignored duplicate definition of service '" << service_->name() 11586f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland << "'"; 11596f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland } 11606f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland 11616f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland service_list_->RemoveService(*old_service); 11626f5333a4a94becb7ef74a5b54d0c28a3738881fdSteven Moreland old_service = nullptr; 11635e1bea30b924661878c6fac4ec14b18e5ba17773Steven Moreland } 11645e1bea30b924661878c6fac4ec14b18e5ba17773Steven Moreland 1165911b9b1d6ead5f2e4c4158af0cd8787f4d458ddfTom Cherry service_list_->AddService(std::move(service_)); 1166b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry } 11677d0a5c3656ee56eb81e442b58063d500b4f506e0Steven Moreland 11687d0a5c3656ee56eb81e442b58063d500b4f506e0Steven Moreland return Success(); 1169b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry} 1170b7349902a945903f9e36a569051f5131beb0bc24Tom Cherry 1171b7349902a945903f9e36a569051f5131beb0bc24Tom Cherrybool ServiceParser::IsValidName(const std::string& name) const { 1172b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // Property names can be any length, but may only contain certain characters. 1173b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // Property values can contain any characters, but may only be a certain length. 1174b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // (The latter restriction is needed because `start` and `stop` work by writing 1175b7788fd454da2201c6e48dededa9b11873ef621eElliott Hughes // the service name to the "ctl.start" and "ctl.stop" properties.) 1176de6bd50d4238d19ec401127bcf2321dc679d908dTom Cherry return IsLegalPropertyName("init.svc." + name) && name.size() <= PROP_VALUE_MAX; 1177bac3299720623f4226bca103b26260052732ad30Tom Cherry} 117881f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry 117981f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry} // namespace init 118081f5d3ebef2c3789737bf718fc2a2cdd7b9e8b33Tom Cherry} // namespace android 1181