Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2015 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #include "service.h" |
| 18 | |
| 19 | #include <fcntl.h> |
Elliott Hughes | 9605a94 | 2016-11-10 17:43:47 -0800 | [diff] [blame] | 20 | #include <inttypes.h> |
Mark Salyzyn | eca2507 | 2018-05-16 15:10:24 -0700 | [diff] [blame] | 21 | #include <linux/input.h> |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 22 | #include <linux/securebits.h> |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 23 | #include <sched.h> |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 24 | #include <sys/prctl.h> |
Vitalii Tomkiv | 081705c | 2016-05-18 17:36:30 -0700 | [diff] [blame] | 25 | #include <sys/resource.h> |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 26 | #include <sys/stat.h> |
Vitalii Tomkiv | 081705c | 2016-05-18 17:36:30 -0700 | [diff] [blame] | 27 | #include <sys/time.h> |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 28 | #include <termios.h> |
Dan Albert | af9ba4d | 2015-08-11 16:37:04 -0700 | [diff] [blame] | 29 | #include <unistd.h> |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 30 | |
Elliott Hughes | 4f71319 | 2015-12-04 22:00:26 -0800 | [diff] [blame] | 31 | #include <android-base/file.h> |
Tom Cherry | 3f5eaae5 | 2017-04-06 16:30:22 -0700 | [diff] [blame] | 32 | #include <android-base/logging.h> |
Elliott Hughes | da46b39 | 2016-10-11 17:09:00 -0700 | [diff] [blame] | 33 | #include <android-base/parseint.h> |
Elliott Hughes | dc80312 | 2018-05-24 18:00:39 -0700 | [diff] [blame] | 34 | #include <android-base/properties.h> |
Elliott Hughes | 4f71319 | 2015-12-04 22:00:26 -0800 | [diff] [blame] | 35 | #include <android-base/stringprintf.h> |
Elliott Hughes | f86b5a6 | 2016-06-24 15:12:21 -0700 | [diff] [blame] | 36 | #include <android-base/strings.h> |
Steven Moreland | e055d73 | 2017-10-05 18:50:22 -0700 | [diff] [blame] | 37 | #include <hidl-util/FQName.h> |
Tom Cherry | 3f5eaae5 | 2017-04-06 16:30:22 -0700 | [diff] [blame] | 38 | #include <processgroup/processgroup.h> |
| 39 | #include <selinux/selinux.h> |
Vitalii Tomkiv | 081705c | 2016-05-18 17:36:30 -0700 | [diff] [blame] | 40 | #include <system/thread_defs.h> |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 41 | |
Tom Cherry | 7ac013d | 2017-08-25 10:39:25 -0700 | [diff] [blame] | 42 | #include "rlimit_parser.h" |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 43 | #include "util.h" |
| 44 | |
Tom Cherry | de6bd50 | 2018-02-13 16:50:08 -0800 | [diff] [blame] | 45 | #if defined(__ANDROID__) |
Jiyong Park | d7f7c20 | 2019-05-10 21:12:15 +0900 | [diff] [blame] | 46 | #include <ApexProperties.sysprop.h> |
Tom Cherry | 40acb37 | 2018-08-01 13:41:12 -0700 | [diff] [blame] | 47 | #include <android/api-level.h> |
Tom Cherry | de6bd50 | 2018-02-13 16:50:08 -0800 | [diff] [blame] | 48 | #include <sys/system_properties.h> |
| 49 | |
Tom Cherry | de6bd50 | 2018-02-13 16:50:08 -0800 | [diff] [blame] | 50 | #include "init.h" |
Jiyong Park | 6866041 | 2019-01-16 23:00:59 +0900 | [diff] [blame] | 51 | #include "mount_namespace.h" |
Tom Cherry | de6bd50 | 2018-02-13 16:50:08 -0800 | [diff] [blame] | 52 | #include "property_service.h" |
Tom Cherry | 40acb37 | 2018-08-01 13:41:12 -0700 | [diff] [blame] | 53 | #include "selinux.h" |
Tom Cherry | de6bd50 | 2018-02-13 16:50:08 -0800 | [diff] [blame] | 54 | #else |
| 55 | #include "host_init_stubs.h" |
| 56 | #endif |
| 57 | |
James Hawkins | e78ea77 | 2017-03-24 11:43:02 -0700 | [diff] [blame] | 58 | using android::base::boot_clock; |
Tom Cherry | 81f5d3e | 2017-06-22 12:53:17 -0700 | [diff] [blame] | 59 | using android::base::GetProperty; |
| 60 | using android::base::Join; |
Elliott Hughes | da46b39 | 2016-10-11 17:09:00 -0700 | [diff] [blame] | 61 | using android::base::ParseInt; |
Tom Cherry | 7916684 | 2018-10-16 10:58:06 -0700 | [diff] [blame] | 62 | using android::base::Split; |
Tom Cherry | 81f5d3e | 2017-06-22 12:53:17 -0700 | [diff] [blame] | 63 | using android::base::StartsWith; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 64 | using android::base::StringPrintf; |
| 65 | using android::base::WriteStringToFile; |
| 66 | |
Tom Cherry | 81f5d3e | 2017-06-22 12:53:17 -0700 | [diff] [blame] | 67 | namespace android { |
| 68 | namespace init { |
| 69 | |
Tom Cherry | aead51b | 2018-04-20 16:18:12 -0700 | [diff] [blame] | 70 | static Result<std::string> ComputeContextFromExecutable(const std::string& service_path) { |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 71 | std::string computed_context; |
| 72 | |
| 73 | char* raw_con = nullptr; |
| 74 | char* raw_filecon = nullptr; |
| 75 | |
| 76 | if (getcon(&raw_con) == -1) { |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 77 | return Error() << "Could not get security context"; |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 78 | } |
| 79 | std::unique_ptr<char> mycon(raw_con); |
| 80 | |
| 81 | if (getfilecon(service_path.c_str(), &raw_filecon) == -1) { |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 82 | return Error() << "Could not get file context"; |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 83 | } |
| 84 | std::unique_ptr<char> filecon(raw_filecon); |
| 85 | |
| 86 | char* new_con = nullptr; |
| 87 | int rc = security_compute_create(mycon.get(), filecon.get(), |
| 88 | string_to_security_class("process"), &new_con); |
| 89 | if (rc == 0) { |
| 90 | computed_context = new_con; |
| 91 | free(new_con); |
| 92 | } |
| 93 | if (rc == 0 && computed_context == mycon.get()) { |
Nick Kralevich | 1ea19eb | 2017-08-25 12:08:57 -0700 | [diff] [blame] | 94 | return Error() << "File " << service_path << "(labeled \"" << filecon.get() |
| 95 | << "\") has incorrect label or no domain transition from " << mycon.get() |
| 96 | << " to another SELinux domain defined. Have you configured your " |
| 97 | "service correctly? https://source.android.com/security/selinux/" |
| 98 | "device-policy#label_new_services_and_address_denials"; |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 99 | } |
| 100 | if (rc < 0) { |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 101 | return Error() << "Could not get process context"; |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 102 | } |
| 103 | return computed_context; |
| 104 | } |
| 105 | |
Tom Cherry | 8f38048 | 2018-04-17 14:48:44 -0700 | [diff] [blame] | 106 | static bool ExpandArgsAndExecv(const std::vector<std::string>& args, bool sigstop) { |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 107 | std::vector<std::string> expanded_args; |
Tom Cherry | 5e405ca | 2017-09-11 16:08:54 -0700 | [diff] [blame] | 108 | std::vector<char*> c_strings; |
| 109 | |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 110 | expanded_args.resize(args.size()); |
Tom Cherry | 5e405ca | 2017-09-11 16:08:54 -0700 | [diff] [blame] | 111 | c_strings.push_back(const_cast<char*>(args[0].data())); |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 112 | for (std::size_t i = 1; i < args.size(); ++i) { |
| 113 | if (!expand_props(args[i], &expanded_args[i])) { |
| 114 | LOG(FATAL) << args[0] << ": cannot expand '" << args[i] << "'"; |
| 115 | } |
Tom Cherry | 5e405ca | 2017-09-11 16:08:54 -0700 | [diff] [blame] | 116 | c_strings.push_back(expanded_args[i].data()); |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 117 | } |
Tom Cherry | 5e405ca | 2017-09-11 16:08:54 -0700 | [diff] [blame] | 118 | c_strings.push_back(nullptr); |
| 119 | |
Tom Cherry | 8f38048 | 2018-04-17 14:48:44 -0700 | [diff] [blame] | 120 | if (sigstop) { |
| 121 | kill(getpid(), SIGSTOP); |
| 122 | } |
| 123 | |
Tom Cherry | 5e405ca | 2017-09-11 16:08:54 -0700 | [diff] [blame] | 124 | return execv(c_strings[0], c_strings.data()) == 0; |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 125 | } |
| 126 | |
Jiyong Park | 6866041 | 2019-01-16 23:00:59 +0900 | [diff] [blame] | 127 | static bool IsRuntimeApexReady() { |
| 128 | struct stat buf; |
| 129 | return stat("/apex/com.android.runtime/", &buf) == 0; |
| 130 | } |
| 131 | |
Tom Cherry | 5938379 | 2017-07-26 16:09:09 -0700 | [diff] [blame] | 132 | unsigned long Service::next_start_order_ = 1; |
Tom Cherry | 3b81f2d | 2017-07-28 14:48:41 -0700 | [diff] [blame] | 133 | bool Service::is_exec_service_running_ = false; |
Tom Cherry | 5938379 | 2017-07-26 16:09:09 -0700 | [diff] [blame] | 134 | |
Tom Cherry | cb0f9bb | 2017-09-12 15:58:47 -0700 | [diff] [blame] | 135 | Service::Service(const std::string& name, Subcontext* subcontext_for_restart_commands, |
| 136 | const std::vector<std::string>& args) |
Tom Cherry | 1cd082d | 2019-02-06 10:45:56 -0800 | [diff] [blame] | 137 | : Service(name, 0, 0, 0, {}, 0, "", subcontext_for_restart_commands, args) {} |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 138 | |
Wei Wang | 641ff0a | 2017-03-27 10:59:11 -0700 | [diff] [blame] | 139 | Service::Service(const std::string& name, unsigned flags, uid_t uid, gid_t gid, |
Tom Cherry | 1cd082d | 2019-02-06 10:45:56 -0800 | [diff] [blame] | 140 | const std::vector<gid_t>& supp_gids, unsigned namespace_flags, |
| 141 | const std::string& seclabel, Subcontext* subcontext_for_restart_commands, |
| 142 | const std::vector<std::string>& args) |
Wei Wang | 641ff0a | 2017-03-27 10:59:11 -0700 | [diff] [blame] | 143 | : name_(name), |
| 144 | classnames_({"default"}), |
| 145 | flags_(flags), |
| 146 | pid_(0), |
| 147 | crash_count_(0), |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 148 | proc_attr_{.ioprio_class = IoSchedClass_NONE, |
| 149 | .ioprio_pri = 0, |
| 150 | .uid = uid, |
| 151 | .gid = gid, |
| 152 | .supp_gids = supp_gids, |
| 153 | .priority = 0}, |
| 154 | namespaces_{.flags = namespace_flags}, |
Wei Wang | 641ff0a | 2017-03-27 10:59:11 -0700 | [diff] [blame] | 155 | seclabel_(seclabel), |
Tom Cherry | 9cbf570 | 2018-02-13 16:24:51 -0800 | [diff] [blame] | 156 | onrestart_(false, subcontext_for_restart_commands, "<Service '" + name + "' onrestart>", 0, |
| 157 | "onrestart", {}), |
Wei Wang | 641ff0a | 2017-03-27 10:59:11 -0700 | [diff] [blame] | 158 | oom_score_adjust_(-1000), |
Tom Cherry | 5938379 | 2017-07-26 16:09:09 -0700 | [diff] [blame] | 159 | start_order_(0), |
Tom Cherry | 9cbf570 | 2018-02-13 16:24:51 -0800 | [diff] [blame] | 160 | args_(args) {} |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 161 | |
| 162 | void Service::NotifyStateChange(const std::string& new_state) const { |
Tom Cherry | b27004a | 2017-03-27 16:27:30 -0700 | [diff] [blame] | 163 | if ((flags_ & SVC_TEMPORARY) != 0) { |
| 164 | // Services created by 'exec' are temporary and don't have properties tracking their state. |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 165 | return; |
| 166 | } |
| 167 | |
Tom Cherry | 1c3a53f | 2017-06-22 16:50:31 -0700 | [diff] [blame] | 168 | std::string prop_name = "init.svc." + name_; |
| 169 | property_set(prop_name, new_state); |
Elliott Hughes | 9605a94 | 2016-11-10 17:43:47 -0800 | [diff] [blame] | 170 | |
| 171 | if (new_state == "running") { |
Elliott Hughes | 9605a94 | 2016-11-10 17:43:47 -0800 | [diff] [blame] | 172 | uint64_t start_ns = time_started_.time_since_epoch().count(); |
Tom Cherry | fed3373 | 2017-08-18 10:47:46 -0700 | [diff] [blame] | 173 | std::string boottime_property = "ro.boottime." + name_; |
| 174 | if (GetProperty(boottime_property, "").empty()) { |
| 175 | property_set(boottime_property, std::to_string(start_ns)); |
| 176 | } |
Elliott Hughes | 9605a94 | 2016-11-10 17:43:47 -0800 | [diff] [blame] | 177 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 178 | } |
| 179 | |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 180 | void Service::KillProcessGroup(int signal) { |
Tom Cherry | 33838b1 | 2017-05-04 11:32:36 -0700 | [diff] [blame] | 181 | // If we've already seen a successful result from killProcessGroup*(), then we have removed |
| 182 | // the cgroup already and calling these functions a second time will simply result in an error. |
| 183 | // This is true regardless of which signal was sent. |
| 184 | // These functions handle their own logging, so no additional logging is needed. |
| 185 | if (!process_cgroup_empty_) { |
| 186 | LOG(INFO) << "Sending signal " << signal << " to service '" << name_ << "' (pid " << pid_ |
| 187 | << ") process group..."; |
| 188 | int r; |
| 189 | if (signal == SIGTERM) { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 190 | r = killProcessGroupOnce(proc_attr_.uid, pid_, signal); |
Tom Cherry | 33838b1 | 2017-05-04 11:32:36 -0700 | [diff] [blame] | 191 | } else { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 192 | r = killProcessGroup(proc_attr_.uid, pid_, signal); |
Tom Cherry | 33838b1 | 2017-05-04 11:32:36 -0700 | [diff] [blame] | 193 | } |
| 194 | |
| 195 | if (r == 0) process_cgroup_empty_ = true; |
| 196 | } |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 197 | } |
| 198 | |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 199 | void Service::SetProcessAttributesAndCaps() { |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 200 | // Keep capabilites on uid change. |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 201 | if (capabilities_ && proc_attr_.uid) { |
Luis Hector Chavez | f596551 | 2017-06-30 14:04:20 -0700 | [diff] [blame] | 202 | // If Android is running in a container, some securebits might already |
| 203 | // be locked, so don't change those. |
Ben Fennema | a724360 | 2017-07-25 14:37:21 -0700 | [diff] [blame] | 204 | unsigned long securebits = prctl(PR_GET_SECUREBITS); |
| 205 | if (securebits == -1UL) { |
Luis Hector Chavez | f596551 | 2017-06-30 14:04:20 -0700 | [diff] [blame] | 206 | PLOG(FATAL) << "prctl(PR_GET_SECUREBITS) failed for " << name_; |
| 207 | } |
| 208 | securebits |= SECBIT_KEEP_CAPS | SECBIT_KEEP_CAPS_LOCKED; |
| 209 | if (prctl(PR_SET_SECUREBITS, securebits) != 0) { |
| 210 | PLOG(FATAL) << "prctl(PR_SET_SECUREBITS) failed for " << name_; |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 211 | } |
| 212 | } |
| 213 | |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 214 | if (auto result = SetProcessAttributes(proc_attr_); !result) { |
| 215 | LOG(FATAL) << "cannot set attribute for " << name_ << ": " << result.error(); |
| 216 | } |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 217 | |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 218 | if (!seclabel_.empty()) { |
| 219 | if (setexeccon(seclabel_.c_str()) < 0) { |
Elliott Hughes | e18e7e5 | 2016-07-25 18:18:16 -0700 | [diff] [blame] | 220 | PLOG(FATAL) << "cannot setexeccon('" << seclabel_ << "') for " << name_; |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 221 | } |
| 222 | } |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 223 | |
Tom Cherry | 1cd082d | 2019-02-06 10:45:56 -0800 | [diff] [blame] | 224 | if (capabilities_) { |
| 225 | if (!SetCapsForExec(*capabilities_)) { |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 226 | LOG(FATAL) << "cannot set capabilities for " << name_; |
| 227 | } |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 228 | } else if (proc_attr_.uid) { |
Luis Hector Chavez | 94fb5b0 | 2017-11-16 15:52:00 -0800 | [diff] [blame] | 229 | // Inheritable caps can be non-zero when running in a container. |
| 230 | if (!DropInheritableCaps()) { |
| 231 | LOG(FATAL) << "cannot drop inheritable caps for " << name_; |
| 232 | } |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 233 | } |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 234 | } |
| 235 | |
Paul Crowley | c73b215 | 2018-04-13 17:38:57 +0000 | [diff] [blame] | 236 | void Service::Reap(const siginfo_t& siginfo) { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 237 | if (!(flags_ & SVC_ONESHOT) || (flags_ & SVC_RESTART)) { |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 238 | KillProcessGroup(SIGKILL); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 239 | } |
| 240 | |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 241 | // Remove any descriptor resources we may have created. |
| 242 | std::for_each(descriptors_.begin(), descriptors_.end(), |
| 243 | std::bind(&DescriptorInfo::Clean, std::placeholders::_1)); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 244 | |
Paul Crowley | c73b215 | 2018-04-13 17:38:57 +0000 | [diff] [blame] | 245 | for (const auto& f : reap_callbacks_) { |
| 246 | f(siginfo); |
| 247 | } |
| 248 | |
Tom Cherry | 3b81f2d | 2017-07-28 14:48:41 -0700 | [diff] [blame] | 249 | if (flags_ & SVC_EXEC) UnSetExec(); |
| 250 | |
| 251 | if (flags_ & SVC_TEMPORARY) return; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 252 | |
| 253 | pid_ = 0; |
| 254 | flags_ &= (~SVC_RUNNING); |
Tom Cherry | 5938379 | 2017-07-26 16:09:09 -0700 | [diff] [blame] | 255 | start_order_ = 0; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 256 | |
| 257 | // Oneshot processes go into the disabled state on exit, |
| 258 | // except when manually restarted. |
Martijn Coenen | 70788f9 | 2019-04-23 16:26:01 +0200 | [diff] [blame] | 259 | if ((flags_ & SVC_ONESHOT) && !(flags_ & SVC_RESTART) && !(flags_ & SVC_RESET)) { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 260 | flags_ |= SVC_DISABLED; |
| 261 | } |
| 262 | |
| 263 | // Disabled and reset processes do not get restarted automatically. |
| 264 | if (flags_ & (SVC_DISABLED | SVC_RESET)) { |
| 265 | NotifyStateChange("stopped"); |
Tom Cherry | b27004a | 2017-03-27 16:27:30 -0700 | [diff] [blame] | 266 | return; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 267 | } |
| 268 | |
Jiyong Park | d7f7c20 | 2019-05-10 21:12:15 +0900 | [diff] [blame] | 269 | #if defined(__ANDROID__) |
| 270 | static bool is_apex_updatable = android::sysprop::ApexProperties::updatable().value_or(false); |
| 271 | #else |
| 272 | static bool is_apex_updatable = false; |
| 273 | #endif |
| 274 | const bool is_process_updatable = !pre_apexd_ && is_apex_updatable; |
| 275 | |
Zimuzo | 88de80f | 2019-04-27 21:10:35 +0100 | [diff] [blame] | 276 | // If we crash > 4 times in 4 minutes or before boot_completed, |
| 277 | // reboot into bootloader or set crashing property |
Elliott Hughes | 9605a94 | 2016-11-10 17:43:47 -0800 | [diff] [blame] | 278 | boot_clock::time_point now = boot_clock::now(); |
Jiyong Park | d7f7c20 | 2019-05-10 21:12:15 +0900 | [diff] [blame] | 279 | if (((flags_ & SVC_CRITICAL) || is_process_updatable) && !(flags_ & SVC_RESTART)) { |
Zimuzo | 88de80f | 2019-04-27 21:10:35 +0100 | [diff] [blame] | 280 | bool boot_completed = android::base::GetBoolProperty("sys.boot_completed", false); |
| 281 | if (now < time_crashed_ + 4min || !boot_completed) { |
Elliott Hughes | 9605a94 | 2016-11-10 17:43:47 -0800 | [diff] [blame] | 282 | if (++crash_count_ > 4) { |
Zimuzo | c55a8c6 | 2019-01-07 10:19:02 +0000 | [diff] [blame] | 283 | if (flags_ & SVC_CRITICAL) { |
| 284 | // Aborts into bootloader |
Zimuzo | 88de80f | 2019-04-27 21:10:35 +0100 | [diff] [blame] | 285 | LOG(FATAL) << "critical process '" << name_ << "' exited 4 times " |
| 286 | << (boot_completed ? "in 4 minutes" : "before boot completed"); |
Zimuzo | c55a8c6 | 2019-01-07 10:19:02 +0000 | [diff] [blame] | 287 | } else { |
Zimuzo | 88de80f | 2019-04-27 21:10:35 +0100 | [diff] [blame] | 288 | LOG(ERROR) << "updatable process '" << name_ << "' exited 4 times " |
| 289 | << (boot_completed ? "in 4 minutes" : "before boot completed"); |
Zimuzo | c55a8c6 | 2019-01-07 10:19:02 +0000 | [diff] [blame] | 290 | // Notifies update_verifier and apexd |
| 291 | property_set("ro.init.updatable_crashing", "1"); |
| 292 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 293 | } |
| 294 | } else { |
| 295 | time_crashed_ = now; |
Elliott Hughes | 9605a94 | 2016-11-10 17:43:47 -0800 | [diff] [blame] | 296 | crash_count_ = 1; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 297 | } |
| 298 | } |
| 299 | |
| 300 | flags_ &= (~SVC_RESTART); |
| 301 | flags_ |= SVC_RESTARTING; |
| 302 | |
| 303 | // Execute all onrestart commands for this service. |
| 304 | onrestart_.ExecuteAllCommands(); |
| 305 | |
| 306 | NotifyStateChange("restarting"); |
Tom Cherry | b27004a | 2017-03-27 16:27:30 -0700 | [diff] [blame] | 307 | return; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 308 | } |
| 309 | |
| 310 | void Service::DumpState() const { |
Elliott Hughes | f86b5a6 | 2016-06-24 15:12:21 -0700 | [diff] [blame] | 311 | LOG(INFO) << "service " << name_; |
Tom Cherry | 81f5d3e | 2017-06-22 12:53:17 -0700 | [diff] [blame] | 312 | LOG(INFO) << " class '" << Join(classnames_, " ") << "'"; |
| 313 | LOG(INFO) << " exec " << Join(args_, " "); |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 314 | std::for_each(descriptors_.begin(), descriptors_.end(), |
| 315 | [] (const auto& info) { LOG(INFO) << *info; }); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 316 | } |
| 317 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 318 | Result<void> Service::ParseCapabilities(std::vector<std::string>&& args) { |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 319 | capabilities_ = 0; |
| 320 | |
Jorge Lucangeli Obes | f3f824e | 2016-12-15 12:13:38 -0500 | [diff] [blame] | 321 | if (!CapAmbientSupported()) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 322 | return Error() |
| 323 | << "capabilities requested but the kernel does not support ambient capabilities"; |
Jorge Lucangeli Obes | f3f824e | 2016-12-15 12:13:38 -0500 | [diff] [blame] | 324 | } |
| 325 | |
| 326 | unsigned int last_valid_cap = GetLastValidCap(); |
Tom Cherry | 1cd082d | 2019-02-06 10:45:56 -0800 | [diff] [blame] | 327 | if (last_valid_cap >= capabilities_->size()) { |
Jorge Lucangeli Obes | f3f824e | 2016-12-15 12:13:38 -0500 | [diff] [blame] | 328 | LOG(WARNING) << "last valid run-time capability is larger than CAP_LAST_CAP"; |
| 329 | } |
| 330 | |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 331 | for (size_t i = 1; i < args.size(); i++) { |
| 332 | const std::string& arg = args[i]; |
Jorge Lucangeli Obes | f3f824e | 2016-12-15 12:13:38 -0500 | [diff] [blame] | 333 | int res = LookupCap(arg); |
| 334 | if (res < 0) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 335 | return Error() << StringPrintf("invalid capability '%s'", arg.c_str()); |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 336 | } |
Jorge Lucangeli Obes | f3f824e | 2016-12-15 12:13:38 -0500 | [diff] [blame] | 337 | unsigned int cap = static_cast<unsigned int>(res); // |res| is >= 0. |
| 338 | if (cap > last_valid_cap) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 339 | return Error() << StringPrintf("capability '%s' not supported by the kernel", |
| 340 | arg.c_str()); |
Jorge Lucangeli Obes | f3f824e | 2016-12-15 12:13:38 -0500 | [diff] [blame] | 341 | } |
Tom Cherry | 1cd082d | 2019-02-06 10:45:56 -0800 | [diff] [blame] | 342 | (*capabilities_)[cap] = true; |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 343 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 344 | return {}; |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 345 | } |
| 346 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 347 | Result<void> Service::ParseClass(std::vector<std::string>&& args) { |
Wei Wang | 641ff0a | 2017-03-27 10:59:11 -0700 | [diff] [blame] | 348 | classnames_ = std::set<std::string>(args.begin() + 1, args.end()); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 349 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 350 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 351 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 352 | Result<void> Service::ParseConsole(std::vector<std::string>&& args) { |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 353 | flags_ |= SVC_CONSOLE; |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 354 | proc_attr_.console = args.size() > 1 ? "/dev/" + args[1] : ""; |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 355 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 356 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 357 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 358 | Result<void> Service::ParseCritical(std::vector<std::string>&& args) { |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 359 | flags_ |= SVC_CRITICAL; |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 360 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 361 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 362 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 363 | Result<void> Service::ParseDisabled(std::vector<std::string>&& args) { |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 364 | flags_ |= SVC_DISABLED; |
| 365 | flags_ |= SVC_RC_DISABLED; |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 366 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 367 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 368 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 369 | Result<void> Service::ParseEnterNamespace(std::vector<std::string>&& args) { |
Tom Cherry | aead51b | 2018-04-20 16:18:12 -0700 | [diff] [blame] | 370 | if (args[1] != "net") { |
| 371 | return Error() << "Init only supports entering network namespaces"; |
| 372 | } |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 373 | if (!namespaces_.namespaces_to_enter.empty()) { |
Tom Cherry | aead51b | 2018-04-20 16:18:12 -0700 | [diff] [blame] | 374 | return Error() << "Only one network namespace may be entered"; |
| 375 | } |
| 376 | // Network namespaces require that /sys is remounted, otherwise the old adapters will still be |
| 377 | // present. Therefore, they also require mount namespaces. |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 378 | namespaces_.flags |= CLONE_NEWNS; |
| 379 | namespaces_.namespaces_to_enter.emplace_back(CLONE_NEWNET, std::move(args[2])); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 380 | return {}; |
Tom Cherry | aead51b | 2018-04-20 16:18:12 -0700 | [diff] [blame] | 381 | } |
| 382 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 383 | Result<void> Service::ParseGroup(std::vector<std::string>&& args) { |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 384 | auto gid = DecodeUid(args[1]); |
| 385 | if (!gid) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 386 | return Error() << "Unable to decode GID for '" << args[1] << "': " << gid.error(); |
Tom Cherry | 517e1f1 | 2017-05-04 17:40:33 -0700 | [diff] [blame] | 387 | } |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 388 | proc_attr_.gid = *gid; |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 389 | |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 390 | for (std::size_t n = 2; n < args.size(); n++) { |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 391 | gid = DecodeUid(args[n]); |
| 392 | if (!gid) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 393 | return Error() << "Unable to decode GID for '" << args[n] << "': " << gid.error(); |
Tom Cherry | 517e1f1 | 2017-05-04 17:40:33 -0700 | [diff] [blame] | 394 | } |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 395 | proc_attr_.supp_gids.emplace_back(*gid); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 396 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 397 | return {}; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 398 | } |
| 399 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 400 | Result<void> Service::ParsePriority(std::vector<std::string>&& args) { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 401 | proc_attr_.priority = 0; |
| 402 | if (!ParseInt(args[1], &proc_attr_.priority, |
| 403 | static_cast<int>(ANDROID_PRIORITY_HIGHEST), // highest is negative |
Keun-young Park | dd34ca4 | 2016-11-11 18:06:31 -0800 | [diff] [blame] | 404 | static_cast<int>(ANDROID_PRIORITY_LOWEST))) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 405 | return Error() << StringPrintf("process priority value must be range %d - %d", |
| 406 | ANDROID_PRIORITY_HIGHEST, ANDROID_PRIORITY_LOWEST); |
Vitalii Tomkiv | 081705c | 2016-05-18 17:36:30 -0700 | [diff] [blame] | 407 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 408 | return {}; |
Vitalii Tomkiv | 081705c | 2016-05-18 17:36:30 -0700 | [diff] [blame] | 409 | } |
| 410 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 411 | Result<void> Service::ParseInterface(std::vector<std::string>&& args) { |
Steven Moreland | e055d73 | 2017-10-05 18:50:22 -0700 | [diff] [blame] | 412 | const std::string& interface_name = args[1]; |
| 413 | const std::string& instance_name = args[2]; |
| 414 | |
Steven Moreland | 422367b | 2018-03-06 14:57:46 -0800 | [diff] [blame] | 415 | FQName fq_name; |
| 416 | if (!FQName::parse(interface_name, &fq_name)) { |
Steven Moreland | e055d73 | 2017-10-05 18:50:22 -0700 | [diff] [blame] | 417 | return Error() << "Invalid fully-qualified name for interface '" << interface_name << "'"; |
| 418 | } |
| 419 | |
| 420 | if (!fq_name.isFullyQualified()) { |
| 421 | return Error() << "Interface name not fully-qualified '" << interface_name << "'"; |
| 422 | } |
| 423 | |
| 424 | if (fq_name.isValidValueName()) { |
| 425 | return Error() << "Interface name must not be a value name '" << interface_name << "'"; |
| 426 | } |
| 427 | |
| 428 | const std::string fullname = interface_name + "/" + instance_name; |
| 429 | |
| 430 | for (const auto& svc : ServiceList::GetInstance()) { |
| 431 | if (svc->interfaces().count(fullname) > 0) { |
| 432 | return Error() << "Interface '" << fullname << "' redefined in " << name() |
| 433 | << " but is already defined by " << svc->name(); |
| 434 | } |
| 435 | } |
| 436 | |
| 437 | interfaces_.insert(fullname); |
| 438 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 439 | return {}; |
Steven Moreland | e055d73 | 2017-10-05 18:50:22 -0700 | [diff] [blame] | 440 | } |
| 441 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 442 | Result<void> Service::ParseIoprio(std::vector<std::string>&& args) { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 443 | if (!ParseInt(args[2], &proc_attr_.ioprio_pri, 0, 7)) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 444 | return Error() << "priority value must be range 0 - 7"; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 445 | } |
| 446 | |
| 447 | if (args[1] == "rt") { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 448 | proc_attr_.ioprio_class = IoSchedClass_RT; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 449 | } else if (args[1] == "be") { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 450 | proc_attr_.ioprio_class = IoSchedClass_BE; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 451 | } else if (args[1] == "idle") { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 452 | proc_attr_.ioprio_class = IoSchedClass_IDLE; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 453 | } else { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 454 | return Error() << "ioprio option usage: ioprio <rt|be|idle> <0-7>"; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 455 | } |
| 456 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 457 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 458 | } |
| 459 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 460 | Result<void> Service::ParseKeycodes(std::vector<std::string>&& args) { |
Tom Cherry | 7916684 | 2018-10-16 10:58:06 -0700 | [diff] [blame] | 461 | auto it = args.begin() + 1; |
| 462 | if (args.size() == 2 && StartsWith(args[1], "$")) { |
| 463 | std::string expanded; |
| 464 | if (!expand_props(args[1], &expanded)) { |
| 465 | return Error() << "Could not expand property '" << args[1] << "'"; |
| 466 | } |
| 467 | |
| 468 | // If the property is not set, it defaults to none, in which case there are no keycodes |
| 469 | // for this service. |
| 470 | if (expanded == "none") { |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 471 | return {}; |
Tom Cherry | 7916684 | 2018-10-16 10:58:06 -0700 | [diff] [blame] | 472 | } |
| 473 | |
| 474 | args = Split(expanded, ","); |
| 475 | it = args.begin(); |
| 476 | } |
| 477 | |
| 478 | for (; it != args.end(); ++it) { |
Elliott Hughes | da46b39 | 2016-10-11 17:09:00 -0700 | [diff] [blame] | 479 | int code; |
Tom Cherry | 7916684 | 2018-10-16 10:58:06 -0700 | [diff] [blame] | 480 | if (ParseInt(*it, &code, 0, KEY_MAX)) { |
Mark Salyzyn | eca2507 | 2018-05-16 15:10:24 -0700 | [diff] [blame] | 481 | for (auto& key : keycodes_) { |
Tom Cherry | 7916684 | 2018-10-16 10:58:06 -0700 | [diff] [blame] | 482 | if (key == code) return Error() << "duplicate keycode: " << *it; |
Mark Salyzyn | eca2507 | 2018-05-16 15:10:24 -0700 | [diff] [blame] | 483 | } |
Mark Salyzyn | 1385725 | 2018-05-18 15:25:15 -0700 | [diff] [blame] | 484 | keycodes_.insert(std::upper_bound(keycodes_.begin(), keycodes_.end(), code), code); |
Elliott Hughes | da46b39 | 2016-10-11 17:09:00 -0700 | [diff] [blame] | 485 | } else { |
Tom Cherry | 7916684 | 2018-10-16 10:58:06 -0700 | [diff] [blame] | 486 | return Error() << "invalid keycode: " << *it; |
Elliott Hughes | da46b39 | 2016-10-11 17:09:00 -0700 | [diff] [blame] | 487 | } |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 488 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 489 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 490 | } |
| 491 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 492 | Result<void> Service::ParseOneshot(std::vector<std::string>&& args) { |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 493 | flags_ |= SVC_ONESHOT; |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 494 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 495 | } |
| 496 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 497 | Result<void> Service::ParseOnrestart(std::vector<std::string>&& args) { |
Tom Cherry | 018a438 | 2018-10-17 11:11:23 -0700 | [diff] [blame] | 498 | args.erase(args.begin()); |
Tom Cherry | 012c573 | 2017-04-18 13:21:54 -0700 | [diff] [blame] | 499 | int line = onrestart_.NumCommands() + 1; |
Tom Cherry | 018a438 | 2018-10-17 11:11:23 -0700 | [diff] [blame] | 500 | if (auto result = onrestart_.AddCommand(std::move(args), line); !result) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 501 | return Error() << "cannot add Onrestart command: " << result.error(); |
| 502 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 503 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 504 | } |
| 505 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 506 | Result<void> Service::ParseNamespace(std::vector<std::string>&& args) { |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 507 | for (size_t i = 1; i < args.size(); i++) { |
| 508 | if (args[i] == "pid") { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 509 | namespaces_.flags |= CLONE_NEWPID; |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 510 | // PID namespaces require mount namespaces. |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 511 | namespaces_.flags |= CLONE_NEWNS; |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 512 | } else if (args[i] == "mnt") { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 513 | namespaces_.flags |= CLONE_NEWNS; |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 514 | } else { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 515 | return Error() << "namespace must be 'pid' or 'mnt'"; |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 516 | } |
| 517 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 518 | return {}; |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 519 | } |
| 520 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 521 | Result<void> Service::ParseOomScoreAdjust(std::vector<std::string>&& args) { |
Elliott Hughes | da46b39 | 2016-10-11 17:09:00 -0700 | [diff] [blame] | 522 | if (!ParseInt(args[1], &oom_score_adjust_, -1000, 1000)) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 523 | return Error() << "oom_score_adjust value must be in range -1000 - +1000"; |
Marco Nelissen | 310f670 | 2016-07-22 12:07:06 -0700 | [diff] [blame] | 524 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 525 | return {}; |
Marco Nelissen | 310f670 | 2016-07-22 12:07:06 -0700 | [diff] [blame] | 526 | } |
| 527 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 528 | Result<void> Service::ParseOverride(std::vector<std::string>&& args) { |
Steven Moreland | 6f5333a | 2017-11-13 15:31:54 -0800 | [diff] [blame] | 529 | override_ = true; |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 530 | return {}; |
Steven Moreland | 6f5333a | 2017-11-13 15:31:54 -0800 | [diff] [blame] | 531 | } |
| 532 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 533 | Result<void> Service::ParseMemcgSwappiness(std::vector<std::string>&& args) { |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 534 | if (!ParseInt(args[1], &swappiness_, 0)) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 535 | return Error() << "swappiness value must be equal or greater than 0"; |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 536 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 537 | return {}; |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 538 | } |
| 539 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 540 | Result<void> Service::ParseMemcgLimitInBytes(std::vector<std::string>&& args) { |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 541 | if (!ParseInt(args[1], &limit_in_bytes_, 0)) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 542 | return Error() << "limit_in_bytes value must be equal or greater than 0"; |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 543 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 544 | return {}; |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 545 | } |
| 546 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 547 | Result<void> Service::ParseMemcgLimitPercent(std::vector<std::string>&& args) { |
Peter Collingbourne | d7157c2 | 2018-10-30 15:49:33 -0700 | [diff] [blame] | 548 | if (!ParseInt(args[1], &limit_percent_, 0)) { |
| 549 | return Error() << "limit_percent value must be equal or greater than 0"; |
| 550 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 551 | return {}; |
Peter Collingbourne | d7157c2 | 2018-10-30 15:49:33 -0700 | [diff] [blame] | 552 | } |
| 553 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 554 | Result<void> Service::ParseMemcgLimitProperty(std::vector<std::string>&& args) { |
Peter Collingbourne | d7157c2 | 2018-10-30 15:49:33 -0700 | [diff] [blame] | 555 | limit_property_ = std::move(args[1]); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 556 | return {}; |
Peter Collingbourne | d7157c2 | 2018-10-30 15:49:33 -0700 | [diff] [blame] | 557 | } |
| 558 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 559 | Result<void> Service::ParseMemcgSoftLimitInBytes(std::vector<std::string>&& args) { |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 560 | if (!ParseInt(args[1], &soft_limit_in_bytes_, 0)) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 561 | return Error() << "soft_limit_in_bytes value must be equal or greater than 0"; |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 562 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 563 | return {}; |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 564 | } |
| 565 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 566 | Result<void> Service::ParseProcessRlimit(std::vector<std::string>&& args) { |
Tom Cherry | 7ac013d | 2017-08-25 10:39:25 -0700 | [diff] [blame] | 567 | auto rlimit = ParseRlimit(args); |
| 568 | if (!rlimit) return rlimit.error(); |
| 569 | |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 570 | proc_attr_.rlimits.emplace_back(*rlimit); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 571 | return {}; |
Tom Cherry | 7ac013d | 2017-08-25 10:39:25 -0700 | [diff] [blame] | 572 | } |
| 573 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 574 | Result<void> Service::ParseRestartPeriod(std::vector<std::string>&& args) { |
Tom Cherry | 73f535e | 2018-09-27 16:10:46 -0700 | [diff] [blame] | 575 | int period; |
| 576 | if (!ParseInt(args[1], &period, 5)) { |
| 577 | return Error() << "restart_period value must be an integer >= 5"; |
| 578 | } |
| 579 | restart_period_ = std::chrono::seconds(period); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 580 | return {}; |
Tom Cherry | 73f535e | 2018-09-27 16:10:46 -0700 | [diff] [blame] | 581 | } |
| 582 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 583 | Result<void> Service::ParseSeclabel(std::vector<std::string>&& args) { |
Tom Cherry | 018a438 | 2018-10-17 11:11:23 -0700 | [diff] [blame] | 584 | seclabel_ = std::move(args[1]); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 585 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 586 | } |
| 587 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 588 | Result<void> Service::ParseSigstop(std::vector<std::string>&& args) { |
Tom Cherry | 8f38048 | 2018-04-17 14:48:44 -0700 | [diff] [blame] | 589 | sigstop_ = true; |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 590 | return {}; |
Tom Cherry | 8f38048 | 2018-04-17 14:48:44 -0700 | [diff] [blame] | 591 | } |
| 592 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 593 | Result<void> Service::ParseSetenv(std::vector<std::string>&& args) { |
Tom Cherry | 018a438 | 2018-10-17 11:11:23 -0700 | [diff] [blame] | 594 | environment_vars_.emplace_back(std::move(args[1]), std::move(args[2])); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 595 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 596 | } |
| 597 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 598 | Result<void> Service::ParseShutdown(std::vector<std::string>&& args) { |
Keun-young Park | cccb34f | 2017-07-05 11:38:44 -0700 | [diff] [blame] | 599 | if (args[1] == "critical") { |
| 600 | flags_ |= SVC_SHUTDOWN_CRITICAL; |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 601 | return {}; |
Keun-young Park | cccb34f | 2017-07-05 11:38:44 -0700 | [diff] [blame] | 602 | } |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 603 | return Error() << "Invalid shutdown option"; |
Keun-young Park | cccb34f | 2017-07-05 11:38:44 -0700 | [diff] [blame] | 604 | } |
| 605 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 606 | Result<void> Service::ParseTimeoutPeriod(std::vector<std::string>&& args) { |
Tom Cherry | 73f535e | 2018-09-27 16:10:46 -0700 | [diff] [blame] | 607 | int period; |
| 608 | if (!ParseInt(args[1], &period, 1)) { |
| 609 | return Error() << "timeout_period value must be an integer >= 1"; |
| 610 | } |
| 611 | timeout_period_ = std::chrono::seconds(period); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 612 | return {}; |
Tom Cherry | 73f535e | 2018-09-27 16:10:46 -0700 | [diff] [blame] | 613 | } |
| 614 | |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 615 | template <typename T> |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 616 | Result<void> Service::AddDescriptor(std::vector<std::string>&& args) { |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 617 | int perm = args.size() > 3 ? std::strtoul(args[3].c_str(), 0, 8) : -1; |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 618 | Result<uid_t> uid = 0; |
| 619 | Result<gid_t> gid = 0; |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 620 | std::string context = args.size() > 6 ? args[6] : ""; |
| 621 | |
Tom Cherry | 517e1f1 | 2017-05-04 17:40:33 -0700 | [diff] [blame] | 622 | if (args.size() > 4) { |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 623 | uid = DecodeUid(args[4]); |
| 624 | if (!uid) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 625 | return Error() << "Unable to find UID for '" << args[4] << "': " << uid.error(); |
Tom Cherry | 517e1f1 | 2017-05-04 17:40:33 -0700 | [diff] [blame] | 626 | } |
| 627 | } |
| 628 | |
| 629 | if (args.size() > 5) { |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 630 | gid = DecodeUid(args[5]); |
| 631 | if (!gid) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 632 | return Error() << "Unable to find GID for '" << args[5] << "': " << gid.error(); |
Tom Cherry | 517e1f1 | 2017-05-04 17:40:33 -0700 | [diff] [blame] | 633 | } |
| 634 | } |
| 635 | |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 636 | auto descriptor = std::make_unique<T>(args[1], args[2], *uid, *gid, perm, context); |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 637 | |
| 638 | auto old = |
| 639 | std::find_if(descriptors_.begin(), descriptors_.end(), |
| 640 | [&descriptor] (const auto& other) { return descriptor.get() == other.get(); }); |
| 641 | |
| 642 | if (old != descriptors_.end()) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 643 | return Error() << "duplicate descriptor " << args[1] << " " << args[2]; |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 644 | } |
| 645 | |
| 646 | descriptors_.emplace_back(std::move(descriptor)); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 647 | return {}; |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 648 | } |
| 649 | |
| 650 | // name type perm [ uid gid context ] |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 651 | Result<void> Service::ParseSocket(std::vector<std::string>&& args) { |
Tom Cherry | 81f5d3e | 2017-06-22 12:53:17 -0700 | [diff] [blame] | 652 | if (!StartsWith(args[2], "dgram") && !StartsWith(args[2], "stream") && |
| 653 | !StartsWith(args[2], "seqpacket")) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 654 | return Error() << "socket type must be 'dgram', 'stream' or 'seqpacket'"; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 655 | } |
Tom Cherry | 018a438 | 2018-10-17 11:11:23 -0700 | [diff] [blame] | 656 | return AddDescriptor<SocketInfo>(std::move(args)); |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 657 | } |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 658 | |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 659 | // name type perm [ uid gid context ] |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 660 | Result<void> Service::ParseFile(std::vector<std::string>&& args) { |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 661 | if (args[2] != "r" && args[2] != "w" && args[2] != "rw") { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 662 | return Error() << "file type must be 'r', 'w' or 'rw'"; |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 663 | } |
Yifan Hong | 567f187 | 2019-03-19 14:38:48 -0700 | [diff] [blame] | 664 | std::string expanded; |
| 665 | if (!expand_props(args[1], &expanded)) { |
| 666 | return Error() << "Could not expand property in file path '" << args[1] << "'"; |
| 667 | } |
| 668 | args[1] = std::move(expanded); |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 669 | if ((args[1][0] != '/') || (args[1].find("../") != std::string::npos)) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 670 | return Error() << "file name must not be relative"; |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 671 | } |
Tom Cherry | 018a438 | 2018-10-17 11:11:23 -0700 | [diff] [blame] | 672 | return AddDescriptor<FileInfo>(std::move(args)); |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 673 | } |
| 674 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 675 | Result<void> Service::ParseUser(std::vector<std::string>&& args) { |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 676 | auto uid = DecodeUid(args[1]); |
| 677 | if (!uid) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 678 | return Error() << "Unable to find UID for '" << args[1] << "': " << uid.error(); |
Tom Cherry | 517e1f1 | 2017-05-04 17:40:33 -0700 | [diff] [blame] | 679 | } |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 680 | proc_attr_.uid = *uid; |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 681 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 682 | } |
| 683 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 684 | Result<void> Service::ParseWritepid(std::vector<std::string>&& args) { |
Tom Cherry | 018a438 | 2018-10-17 11:11:23 -0700 | [diff] [blame] | 685 | args.erase(args.begin()); |
| 686 | writepid_files_ = std::move(args); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 687 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 688 | } |
| 689 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 690 | Result<void> Service::ParseUpdatable(std::vector<std::string>&& args) { |
Jiyong Park | 80aa447 | 2018-11-12 12:08:41 +0900 | [diff] [blame] | 691 | updatable_ = true; |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 692 | return {}; |
Jiyong Park | 80aa447 | 2018-11-12 12:08:41 +0900 | [diff] [blame] | 693 | } |
| 694 | |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 695 | class Service::OptionParserMap : public KeywordMap<OptionParser> { |
Tom Cherry | ad54d09 | 2017-04-19 16:18:50 -0700 | [diff] [blame] | 696 | public: |
| 697 | OptionParserMap() {} |
| 698 | |
| 699 | private: |
| 700 | const Map& map() const override; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 701 | }; |
| 702 | |
Tom Cherry | ad54d09 | 2017-04-19 16:18:50 -0700 | [diff] [blame] | 703 | const Service::OptionParserMap::Map& Service::OptionParserMap::map() const { |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 704 | constexpr std::size_t kMax = std::numeric_limits<std::size_t>::max(); |
Wei Wang | 641ff0a | 2017-03-27 10:59:11 -0700 | [diff] [blame] | 705 | // clang-format off |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 706 | static const Map option_parsers = { |
Jorge Lucangeli Obes | 24b2913 | 2016-10-27 10:33:03 -0400 | [diff] [blame] | 707 | {"capabilities", |
Tom Cherry | 1cd082d | 2019-02-06 10:45:56 -0800 | [diff] [blame] | 708 | {0, kMax, &Service::ParseCapabilities}}, |
Wei Wang | 641ff0a | 2017-03-27 10:59:11 -0700 | [diff] [blame] | 709 | {"class", {1, kMax, &Service::ParseClass}}, |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 710 | {"console", {0, 1, &Service::ParseConsole}}, |
| 711 | {"critical", {0, 0, &Service::ParseCritical}}, |
| 712 | {"disabled", {0, 0, &Service::ParseDisabled}}, |
Tom Cherry | aead51b | 2018-04-20 16:18:12 -0700 | [diff] [blame] | 713 | {"enter_namespace", |
| 714 | {2, 2, &Service::ParseEnterNamespace}}, |
Tom Cherry | e2f341e | 2018-03-08 13:51:10 -0800 | [diff] [blame] | 715 | {"file", {2, 2, &Service::ParseFile}}, |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 716 | {"group", {1, NR_SVC_SUPP_GIDS + 1, &Service::ParseGroup}}, |
Steven Moreland | e055d73 | 2017-10-05 18:50:22 -0700 | [diff] [blame] | 717 | {"interface", {2, 2, &Service::ParseInterface}}, |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 718 | {"ioprio", {2, 2, &Service::ParseIoprio}}, |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 719 | {"keycodes", {1, kMax, &Service::ParseKeycodes}}, |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 720 | {"memcg.limit_in_bytes", |
| 721 | {1, 1, &Service::ParseMemcgLimitInBytes}}, |
Peter Collingbourne | d7157c2 | 2018-10-30 15:49:33 -0700 | [diff] [blame] | 722 | {"memcg.limit_percent", |
| 723 | {1, 1, &Service::ParseMemcgLimitPercent}}, |
| 724 | {"memcg.limit_property", |
| 725 | {1, 1, &Service::ParseMemcgLimitProperty}}, |
Tom Cherry | e2f341e | 2018-03-08 13:51:10 -0800 | [diff] [blame] | 726 | {"memcg.soft_limit_in_bytes", |
| 727 | {1, 1, &Service::ParseMemcgSoftLimitInBytes}}, |
| 728 | {"memcg.swappiness", |
| 729 | {1, 1, &Service::ParseMemcgSwappiness}}, |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 730 | {"namespace", {1, 2, &Service::ParseNamespace}}, |
Tom Cherry | e2f341e | 2018-03-08 13:51:10 -0800 | [diff] [blame] | 731 | {"oneshot", {0, 0, &Service::ParseOneshot}}, |
| 732 | {"onrestart", {1, kMax, &Service::ParseOnrestart}}, |
| 733 | {"oom_score_adjust", |
| 734 | {1, 1, &Service::ParseOomScoreAdjust}}, |
| 735 | {"override", {0, 0, &Service::ParseOverride}}, |
| 736 | {"priority", {1, 1, &Service::ParsePriority}}, |
Tom Cherry | 73f535e | 2018-09-27 16:10:46 -0700 | [diff] [blame] | 737 | {"restart_period", |
| 738 | {1, 1, &Service::ParseRestartPeriod}}, |
Tom Cherry | 7ac013d | 2017-08-25 10:39:25 -0700 | [diff] [blame] | 739 | {"rlimit", {3, 3, &Service::ParseProcessRlimit}}, |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 740 | {"seclabel", {1, 1, &Service::ParseSeclabel}}, |
| 741 | {"setenv", {2, 2, &Service::ParseSetenv}}, |
Keun-young Park | cccb34f | 2017-07-05 11:38:44 -0700 | [diff] [blame] | 742 | {"shutdown", {1, 1, &Service::ParseShutdown}}, |
Tom Cherry | 8f38048 | 2018-04-17 14:48:44 -0700 | [diff] [blame] | 743 | {"sigstop", {0, 0, &Service::ParseSigstop}}, |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 744 | {"socket", {3, 6, &Service::ParseSocket}}, |
Tom Cherry | 73f535e | 2018-09-27 16:10:46 -0700 | [diff] [blame] | 745 | {"timeout_period", |
| 746 | {1, 1, &Service::ParseTimeoutPeriod}}, |
Jiyong Park | 80aa447 | 2018-11-12 12:08:41 +0900 | [diff] [blame] | 747 | {"updatable", {0, 0, &Service::ParseUpdatable}}, |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 748 | {"user", {1, 1, &Service::ParseUser}}, |
| 749 | {"writepid", {1, kMax, &Service::ParseWritepid}}, |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 750 | }; |
Wei Wang | 641ff0a | 2017-03-27 10:59:11 -0700 | [diff] [blame] | 751 | // clang-format on |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 752 | return option_parsers; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 753 | } |
| 754 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 755 | Result<void> Service::ParseLine(std::vector<std::string>&& args) { |
Jorge Lucangeli Obes | 177b27d | 2016-06-29 14:32:49 -0400 | [diff] [blame] | 756 | static const OptionParserMap parser_map; |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 757 | auto parser = parser_map.FindFunction(args); |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 758 | |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 759 | if (!parser) return parser.error(); |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 760 | |
Tom Cherry | 018a438 | 2018-10-17 11:11:23 -0700 | [diff] [blame] | 761 | return std::invoke(*parser, this, std::move(args)); |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 762 | } |
| 763 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 764 | Result<void> Service::ExecStart() { |
Jiyong Park | 80aa447 | 2018-11-12 12:08:41 +0900 | [diff] [blame] | 765 | if (is_updatable() && !ServiceList::GetInstance().IsServicesUpdated()) { |
| 766 | // Don't delay the service for ExecStart() as the semantic is that |
| 767 | // the caller might depend on the side effect of the execution. |
| 768 | return Error() << "Cannot start an updatable service '" << name_ |
| 769 | << "' before configs from APEXes are all loaded"; |
| 770 | } |
| 771 | |
Tom Cherry | 3b81f2d | 2017-07-28 14:48:41 -0700 | [diff] [blame] | 772 | flags_ |= SVC_ONESHOT; |
Tom Cherry | b27004a | 2017-03-27 16:27:30 -0700 | [diff] [blame] | 773 | |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 774 | if (auto result = Start(); !result) { |
| 775 | return result; |
Tom Cherry | b27004a | 2017-03-27 16:27:30 -0700 | [diff] [blame] | 776 | } |
Tom Cherry | 3b81f2d | 2017-07-28 14:48:41 -0700 | [diff] [blame] | 777 | |
| 778 | flags_ |= SVC_EXEC; |
| 779 | is_exec_service_running_ = true; |
| 780 | |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 781 | LOG(INFO) << "SVC_EXEC service '" << name_ << "' pid " << pid_ << " (uid " << proc_attr_.uid |
| 782 | << " gid " << proc_attr_.gid << "+" << proc_attr_.supp_gids.size() << " context " |
Wei Wang | 2c4ee75 | 2018-06-20 14:54:52 -0700 | [diff] [blame] | 783 | << (!seclabel_.empty() ? seclabel_ : "default") << ") started; waiting..."; |
Tom Cherry | 3b81f2d | 2017-07-28 14:48:41 -0700 | [diff] [blame] | 784 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 785 | return {}; |
Tom Cherry | b27004a | 2017-03-27 16:27:30 -0700 | [diff] [blame] | 786 | } |
| 787 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 788 | Result<void> Service::Start() { |
Jiyong Park | 80aa447 | 2018-11-12 12:08:41 +0900 | [diff] [blame] | 789 | if (is_updatable() && !ServiceList::GetInstance().IsServicesUpdated()) { |
| 790 | ServiceList::GetInstance().DelayService(*this); |
| 791 | return Error() << "Cannot start an updatable service '" << name_ |
| 792 | << "' before configs from APEXes are all loaded. " |
| 793 | << "Queued for execution."; |
| 794 | } |
| 795 | |
Tao Wu | 990d43c | 2017-10-26 10:43:10 -0700 | [diff] [blame] | 796 | bool disabled = (flags_ & (SVC_DISABLED | SVC_RESET)); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 797 | // Starting a service removes it from the disabled or reset state and |
| 798 | // immediately takes it out of the restarting state if it was in there. |
| 799 | flags_ &= (~(SVC_DISABLED|SVC_RESTARTING|SVC_RESET|SVC_RESTART|SVC_DISABLED_START)); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 800 | |
| 801 | // Running processes require no additional work --- if they're in the |
| 802 | // process of exiting, we've ensured that they will immediately restart |
Tao Wu | 990d43c | 2017-10-26 10:43:10 -0700 | [diff] [blame] | 803 | // on exit, unless they are ONESHOT. For ONESHOT service, if it's in |
| 804 | // stopping status, we just set SVC_RESTART flag so it will get restarted |
| 805 | // in Reap(). |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 806 | if (flags_ & SVC_RUNNING) { |
Tao Wu | 990d43c | 2017-10-26 10:43:10 -0700 | [diff] [blame] | 807 | if ((flags_ & SVC_ONESHOT) && disabled) { |
| 808 | flags_ |= SVC_RESTART; |
| 809 | } |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 810 | // It is not an error to try to start a service that is already running. |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 811 | return {}; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 812 | } |
| 813 | |
| 814 | bool needs_console = (flags_ & SVC_CONSOLE); |
Viorel Suman | 70daa67 | 2016-03-21 10:08:07 +0200 | [diff] [blame] | 815 | if (needs_console) { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 816 | if (proc_attr_.console.empty()) { |
| 817 | proc_attr_.console = default_console; |
Viorel Suman | 70daa67 | 2016-03-21 10:08:07 +0200 | [diff] [blame] | 818 | } |
| 819 | |
Adrian Salido | 24ef860 | 2016-12-20 15:52:15 -0800 | [diff] [blame] | 820 | // Make sure that open call succeeds to ensure a console driver is |
| 821 | // properly registered for the device node |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 822 | int console_fd = open(proc_attr_.console.c_str(), O_RDWR | O_CLOEXEC); |
Adrian Salido | 24ef860 | 2016-12-20 15:52:15 -0800 | [diff] [blame] | 823 | if (console_fd < 0) { |
Viorel Suman | 70daa67 | 2016-03-21 10:08:07 +0200 | [diff] [blame] | 824 | flags_ |= SVC_DISABLED; |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 825 | return ErrnoError() << "Couldn't open console '" << proc_attr_.console << "'"; |
Viorel Suman | 70daa67 | 2016-03-21 10:08:07 +0200 | [diff] [blame] | 826 | } |
Adrian Salido | 24ef860 | 2016-12-20 15:52:15 -0800 | [diff] [blame] | 827 | close(console_fd); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 828 | } |
| 829 | |
| 830 | struct stat sb; |
| 831 | if (stat(args_[0].c_str(), &sb) == -1) { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 832 | flags_ |= SVC_DISABLED; |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 833 | return ErrnoError() << "Cannot find '" << args_[0] << "'"; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 834 | } |
| 835 | |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 836 | std::string scon; |
| 837 | if (!seclabel_.empty()) { |
| 838 | scon = seclabel_; |
| 839 | } else { |
Tom Cherry | aead51b | 2018-04-20 16:18:12 -0700 | [diff] [blame] | 840 | auto result = ComputeContextFromExecutable(args_[0]); |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 841 | if (!result) { |
| 842 | return result.error(); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 843 | } |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 844 | scon = *result; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 845 | } |
| 846 | |
Jiyong Park | 6866041 | 2019-01-16 23:00:59 +0900 | [diff] [blame] | 847 | if (!IsRuntimeApexReady() && !pre_apexd_) { |
| 848 | // If this service is started before the runtime APEX gets available, |
| 849 | // mark it as pre-apexd one. Note that this marking is permanent. So |
| 850 | // for example, if the service is re-launched (e.g., due to crash), |
| 851 | // it is still recognized as pre-apexd... for consistency. |
| 852 | pre_apexd_ = true; |
| 853 | } |
| 854 | |
Martijn Coenen | 70788f9 | 2019-04-23 16:26:01 +0200 | [diff] [blame] | 855 | post_data_ = ServiceList::GetInstance().IsPostData(); |
| 856 | |
Wei Wang | a285dac | 2016-10-04 14:05:39 -0700 | [diff] [blame] | 857 | LOG(INFO) << "starting service '" << name_ << "'..."; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 858 | |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 859 | pid_t pid = -1; |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 860 | if (namespaces_.flags) { |
| 861 | pid = clone(nullptr, nullptr, namespaces_.flags | SIGCHLD, nullptr); |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 862 | } else { |
| 863 | pid = fork(); |
| 864 | } |
| 865 | |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 866 | if (pid == 0) { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 867 | umask(077); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 868 | |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 869 | if (auto result = EnterNamespaces(namespaces_, name_, pre_apexd_); !result) { |
| 870 | LOG(FATAL) << "Service '" << name_ |
| 871 | << "' failed to set up namespaces: " << result.error(); |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 872 | } |
| 873 | |
Tom Cherry | 6de21f1 | 2017-08-22 15:41:03 -0700 | [diff] [blame] | 874 | for (const auto& [key, value] : environment_vars_) { |
| 875 | setenv(key.c_str(), value.c_str(), 1); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 876 | } |
| 877 | |
Mark Salyzyn | 62767fe | 2016-10-27 07:45:34 -0700 | [diff] [blame] | 878 | std::for_each(descriptors_.begin(), descriptors_.end(), |
| 879 | std::bind(&DescriptorInfo::CreateAndPublish, std::placeholders::_1, scon)); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 880 | |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 881 | if (auto result = WritePidToFiles(&writepid_files_); !result) { |
| 882 | LOG(ERROR) << "failed to write pid to files: " << result.error(); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 883 | } |
| 884 | |
Jorge Lucangeli Obes | 344d01f | 2016-07-08 13:32:26 -0400 | [diff] [blame] | 885 | // As requested, set our gid, supplemental gids, uid, context, and |
| 886 | // priority. Aborts on failure. |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 887 | SetProcessAttributesAndCaps(); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 888 | |
Tom Cherry | 8f38048 | 2018-04-17 14:48:44 -0700 | [diff] [blame] | 889 | if (!ExpandArgsAndExecv(args_, sigstop_)) { |
Tom Cherry | 5e405ca | 2017-09-11 16:08:54 -0700 | [diff] [blame] | 890 | PLOG(ERROR) << "cannot execve('" << args_[0] << "')"; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 891 | } |
| 892 | |
| 893 | _exit(127); |
| 894 | } |
| 895 | |
| 896 | if (pid < 0) { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 897 | pid_ = 0; |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 898 | return ErrnoError() << "Failed to fork"; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 899 | } |
| 900 | |
Marco Nelissen | 310f670 | 2016-07-22 12:07:06 -0700 | [diff] [blame] | 901 | if (oom_score_adjust_ != -1000) { |
Tom Cherry | 1c3a53f | 2017-06-22 16:50:31 -0700 | [diff] [blame] | 902 | std::string oom_str = std::to_string(oom_score_adjust_); |
Marco Nelissen | 310f670 | 2016-07-22 12:07:06 -0700 | [diff] [blame] | 903 | std::string oom_file = StringPrintf("/proc/%d/oom_score_adj", pid); |
| 904 | if (!WriteStringToFile(oom_str, oom_file)) { |
Elliott Hughes | 076305e | 2019-03-08 12:34:53 -0800 | [diff] [blame] | 905 | PLOG(ERROR) << "couldn't write oom_score_adj"; |
Marco Nelissen | 310f670 | 2016-07-22 12:07:06 -0700 | [diff] [blame] | 906 | } |
| 907 | } |
| 908 | |
Elliott Hughes | 9605a94 | 2016-11-10 17:43:47 -0800 | [diff] [blame] | 909 | time_started_ = boot_clock::now(); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 910 | pid_ = pid; |
| 911 | flags_ |= SVC_RUNNING; |
Tom Cherry | 5938379 | 2017-07-26 16:09:09 -0700 | [diff] [blame] | 912 | start_order_ = next_start_order_++; |
Tom Cherry | 33838b1 | 2017-05-04 11:32:36 -0700 | [diff] [blame] | 913 | process_cgroup_empty_ = false; |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 914 | |
Peter Collingbourne | d7157c2 | 2018-10-30 15:49:33 -0700 | [diff] [blame] | 915 | bool use_memcg = swappiness_ != -1 || soft_limit_in_bytes_ != -1 || limit_in_bytes_ != -1 || |
| 916 | limit_percent_ != -1 || !limit_property_.empty(); |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 917 | errno = -createProcessGroup(proc_attr_.uid, pid_, use_memcg); |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 918 | if (errno != 0) { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 919 | PLOG(ERROR) << "createProcessGroup(" << proc_attr_.uid << ", " << pid_ |
| 920 | << ") failed for service '" << name_ << "'"; |
Peter Collingbourne | d7157c2 | 2018-10-30 15:49:33 -0700 | [diff] [blame] | 921 | } else if (use_memcg) { |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 922 | if (swappiness_ != -1) { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 923 | if (!setProcessGroupSwappiness(proc_attr_.uid, pid_, swappiness_)) { |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 924 | PLOG(ERROR) << "setProcessGroupSwappiness failed"; |
| 925 | } |
| 926 | } |
| 927 | |
| 928 | if (soft_limit_in_bytes_ != -1) { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 929 | if (!setProcessGroupSoftLimit(proc_attr_.uid, pid_, soft_limit_in_bytes_)) { |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 930 | PLOG(ERROR) << "setProcessGroupSoftLimit failed"; |
| 931 | } |
| 932 | } |
| 933 | |
Peter Collingbourne | d7157c2 | 2018-10-30 15:49:33 -0700 | [diff] [blame] | 934 | size_t computed_limit_in_bytes = limit_in_bytes_; |
| 935 | if (limit_percent_ != -1) { |
| 936 | long page_size = sysconf(_SC_PAGESIZE); |
| 937 | long num_pages = sysconf(_SC_PHYS_PAGES); |
| 938 | if (page_size > 0 && num_pages > 0) { |
| 939 | size_t max_mem = SIZE_MAX; |
| 940 | if (size_t(num_pages) < SIZE_MAX / size_t(page_size)) { |
| 941 | max_mem = size_t(num_pages) * size_t(page_size); |
| 942 | } |
| 943 | computed_limit_in_bytes = |
| 944 | std::min(computed_limit_in_bytes, max_mem / 100 * limit_percent_); |
| 945 | } |
| 946 | } |
| 947 | |
| 948 | if (!limit_property_.empty()) { |
| 949 | // This ends up overwriting computed_limit_in_bytes but only if the |
| 950 | // property is defined. |
| 951 | computed_limit_in_bytes = android::base::GetUintProperty( |
| 952 | limit_property_, computed_limit_in_bytes, SIZE_MAX); |
| 953 | } |
| 954 | |
| 955 | if (computed_limit_in_bytes != size_t(-1)) { |
Vic Yang | e01ca4d | 2019-05-29 15:58:32 -0700 | [diff] [blame] | 956 | if (!setProcessGroupLimit(proc_attr_.uid, pid_, computed_limit_in_bytes)) { |
Robert Benea | d485226 | 2017-07-16 19:38:11 -0700 | [diff] [blame] | 957 | PLOG(ERROR) << "setProcessGroupLimit failed"; |
| 958 | } |
| 959 | } |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 960 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 961 | |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 962 | NotifyStateChange("running"); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 963 | return {}; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 964 | } |
| 965 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 966 | Result<void> Service::StartIfNotDisabled() { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 967 | if (!(flags_ & SVC_DISABLED)) { |
| 968 | return Start(); |
| 969 | } else { |
| 970 | flags_ |= SVC_DISABLED_START; |
| 971 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 972 | return {}; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 973 | } |
| 974 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 975 | Result<void> Service::Enable() { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 976 | flags_ &= ~(SVC_DISABLED | SVC_RC_DISABLED); |
| 977 | if (flags_ & SVC_DISABLED_START) { |
| 978 | return Start(); |
| 979 | } |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 980 | return {}; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 981 | } |
| 982 | |
| 983 | void Service::Reset() { |
| 984 | StopOrReset(SVC_RESET); |
| 985 | } |
| 986 | |
Martijn Coenen | 70788f9 | 2019-04-23 16:26:01 +0200 | [diff] [blame] | 987 | void Service::ResetIfPostData() { |
| 988 | if (post_data_) { |
Martijn Coenen | acc45aa | 2019-05-15 22:04:13 +0200 | [diff] [blame] | 989 | if (flags_ & SVC_RUNNING) { |
| 990 | running_at_post_data_reset_ = true; |
| 991 | } |
Martijn Coenen | 70788f9 | 2019-04-23 16:26:01 +0200 | [diff] [blame] | 992 | StopOrReset(SVC_RESET); |
| 993 | } |
| 994 | } |
| 995 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 996 | Result<void> Service::StartIfPostData() { |
Martijn Coenen | acc45aa | 2019-05-15 22:04:13 +0200 | [diff] [blame] | 997 | // Start the service, but only if it was started after /data was mounted, |
| 998 | // and it was still running when we reset the post-data services. |
| 999 | if (running_at_post_data_reset_) { |
| 1000 | return Start(); |
| 1001 | } |
| 1002 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 1003 | return {}; |
Martijn Coenen | acc45aa | 2019-05-15 22:04:13 +0200 | [diff] [blame] | 1004 | } |
| 1005 | |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1006 | void Service::Stop() { |
| 1007 | StopOrReset(SVC_DISABLED); |
| 1008 | } |
| 1009 | |
Bertrand SIMONNET | b7e03e8 | 2015-12-18 11:39:59 -0800 | [diff] [blame] | 1010 | void Service::Terminate() { |
| 1011 | flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); |
| 1012 | flags_ |= SVC_DISABLED; |
| 1013 | if (pid_) { |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 1014 | KillProcessGroup(SIGTERM); |
Bertrand SIMONNET | b7e03e8 | 2015-12-18 11:39:59 -0800 | [diff] [blame] | 1015 | NotifyStateChange("stopping"); |
| 1016 | } |
| 1017 | } |
| 1018 | |
Tom Cherry | 73f535e | 2018-09-27 16:10:46 -0700 | [diff] [blame] | 1019 | void Service::Timeout() { |
| 1020 | // All process state flags will be taken care of in Reap(), we really just want to kill the |
| 1021 | // process here when it times out. Oneshot processes will transition to be disabled, and |
| 1022 | // all other processes will transition to be restarting. |
| 1023 | LOG(INFO) << "Service '" << name_ << "' expired its timeout of " << timeout_period_->count() |
| 1024 | << " seconds and will now be killed"; |
| 1025 | if (pid_) { |
| 1026 | KillProcessGroup(SIGKILL); |
| 1027 | NotifyStateChange("stopping"); |
| 1028 | } |
| 1029 | } |
| 1030 | |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1031 | void Service::Restart() { |
| 1032 | if (flags_ & SVC_RUNNING) { |
| 1033 | /* Stop, wait, then start the service. */ |
| 1034 | StopOrReset(SVC_RESTART); |
| 1035 | } else if (!(flags_ & SVC_RESTARTING)) { |
| 1036 | /* Just start the service since it's not running. */ |
Tom Cherry | 76af7e6 | 2017-08-22 16:13:59 -0700 | [diff] [blame] | 1037 | if (auto result = Start(); !result) { |
| 1038 | LOG(ERROR) << "Could not restart '" << name_ << "': " << result.error(); |
| 1039 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1040 | } /* else: Service is restarting anyways. */ |
| 1041 | } |
| 1042 | |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 1043 | // The how field should be either SVC_DISABLED, SVC_RESET, or SVC_RESTART. |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1044 | void Service::StopOrReset(int how) { |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 1045 | // The service is still SVC_RUNNING until its process exits, but if it has |
| 1046 | // already exited it shoudn't attempt a restart yet. |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1047 | flags_ &= ~(SVC_RESTARTING | SVC_DISABLED_START); |
| 1048 | |
| 1049 | if ((how != SVC_DISABLED) && (how != SVC_RESET) && (how != SVC_RESTART)) { |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 1050 | // An illegal flag: default to SVC_DISABLED. |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1051 | how = SVC_DISABLED; |
| 1052 | } |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 1053 | |
| 1054 | // If the service has not yet started, prevent it from auto-starting with its class. |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1055 | if (how == SVC_RESET) { |
| 1056 | flags_ |= (flags_ & SVC_RC_DISABLED) ? SVC_DISABLED : SVC_RESET; |
| 1057 | } else { |
| 1058 | flags_ |= how; |
| 1059 | } |
Tao Wu | 84b856d | 2017-10-27 11:29:13 -0700 | [diff] [blame] | 1060 | // Make sure it's in right status when a restart immediately follow a |
| 1061 | // stop/reset or vice versa. |
| 1062 | if (how == SVC_RESTART) { |
| 1063 | flags_ &= (~(SVC_DISABLED | SVC_RESET)); |
| 1064 | } else { |
| 1065 | flags_ &= (~SVC_RESTART); |
| 1066 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1067 | |
| 1068 | if (pid_) { |
Elliott Hughes | ad8e94e | 2016-06-15 14:49:57 -0700 | [diff] [blame] | 1069 | KillProcessGroup(SIGKILL); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1070 | NotifyStateChange("stopping"); |
| 1071 | } else { |
| 1072 | NotifyStateChange("stopped"); |
| 1073 | } |
| 1074 | } |
| 1075 | |
Tom Cherry | 911b9b1 | 2017-07-27 16:20:58 -0700 | [diff] [blame] | 1076 | ServiceList::ServiceList() {} |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1077 | |
Tom Cherry | 911b9b1 | 2017-07-27 16:20:58 -0700 | [diff] [blame] | 1078 | ServiceList& ServiceList::GetInstance() { |
| 1079 | static ServiceList instance; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1080 | return instance; |
| 1081 | } |
| 1082 | |
Tom Cherry | 911b9b1 | 2017-07-27 16:20:58 -0700 | [diff] [blame] | 1083 | void ServiceList::AddService(std::unique_ptr<Service> service) { |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1084 | services_.emplace_back(std::move(service)); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1085 | } |
| 1086 | |
Tom Cherry | 3b81f2d | 2017-07-28 14:48:41 -0700 | [diff] [blame] | 1087 | std::unique_ptr<Service> Service::MakeTemporaryOneshotService(const std::vector<std::string>& args) { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1088 | // Parse the arguments: exec [SECLABEL [UID [GID]*] --] COMMAND ARGS... |
| 1089 | // SECLABEL can be a - to denote default |
| 1090 | std::size_t command_arg = 1; |
| 1091 | for (std::size_t i = 1; i < args.size(); ++i) { |
| 1092 | if (args[i] == "--") { |
| 1093 | command_arg = i + 1; |
| 1094 | break; |
| 1095 | } |
| 1096 | } |
| 1097 | if (command_arg > 4 + NR_SVC_SUPP_GIDS) { |
Elliott Hughes | f86b5a6 | 2016-06-24 15:12:21 -0700 | [diff] [blame] | 1098 | LOG(ERROR) << "exec called with too many supplementary group ids"; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1099 | return nullptr; |
| 1100 | } |
| 1101 | |
| 1102 | if (command_arg >= args.size()) { |
Elliott Hughes | f86b5a6 | 2016-06-24 15:12:21 -0700 | [diff] [blame] | 1103 | LOG(ERROR) << "exec called without command"; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1104 | return nullptr; |
| 1105 | } |
| 1106 | std::vector<std::string> str_args(args.begin() + command_arg, args.end()); |
| 1107 | |
Tom Cherry | 3b81f2d | 2017-07-28 14:48:41 -0700 | [diff] [blame] | 1108 | static size_t exec_count = 0; |
| 1109 | exec_count++; |
| 1110 | std::string name = "exec " + std::to_string(exec_count) + " (" + Join(str_args, " ") + ")"; |
Tom Cherry | 86e31a8 | 2017-04-25 17:31:06 -0700 | [diff] [blame] | 1111 | |
Tom Cherry | 3b81f2d | 2017-07-28 14:48:41 -0700 | [diff] [blame] | 1112 | unsigned flags = SVC_ONESHOT | SVC_TEMPORARY; |
Jorge Lucangeli Obes | 1b3fa3d | 2016-04-21 15:35:09 -0700 | [diff] [blame] | 1113 | unsigned namespace_flags = 0; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1114 | |
| 1115 | std::string seclabel = ""; |
| 1116 | if (command_arg > 2 && args[1] != "-") { |
| 1117 | seclabel = args[1]; |
| 1118 | } |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 1119 | Result<uid_t> uid = 0; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1120 | if (command_arg > 3) { |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 1121 | uid = DecodeUid(args[2]); |
| 1122 | if (!uid) { |
| 1123 | LOG(ERROR) << "Unable to decode UID for '" << args[2] << "': " << uid.error(); |
Tom Cherry | 517e1f1 | 2017-05-04 17:40:33 -0700 | [diff] [blame] | 1124 | return nullptr; |
| 1125 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1126 | } |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 1127 | Result<gid_t> gid = 0; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1128 | std::vector<gid_t> supp_gids; |
| 1129 | if (command_arg > 4) { |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 1130 | gid = DecodeUid(args[3]); |
| 1131 | if (!gid) { |
| 1132 | LOG(ERROR) << "Unable to decode GID for '" << args[3] << "': " << gid.error(); |
Tom Cherry | 517e1f1 | 2017-05-04 17:40:33 -0700 | [diff] [blame] | 1133 | return nullptr; |
| 1134 | } |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1135 | std::size_t nr_supp_gids = command_arg - 1 /* -- */ - 4 /* exec SECLABEL UID GID */; |
| 1136 | for (size_t i = 0; i < nr_supp_gids; ++i) { |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 1137 | auto supp_gid = DecodeUid(args[4 + i]); |
| 1138 | if (!supp_gid) { |
| 1139 | LOG(ERROR) << "Unable to decode GID for '" << args[4 + i] |
| 1140 | << "': " << supp_gid.error(); |
Tom Cherry | 517e1f1 | 2017-05-04 17:40:33 -0700 | [diff] [blame] | 1141 | return nullptr; |
| 1142 | } |
Tom Cherry | 11a3aee | 2017-08-03 12:54:07 -0700 | [diff] [blame] | 1143 | supp_gids.push_back(*supp_gid); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1144 | } |
| 1145 | } |
| 1146 | |
Tom Cherry | 1cd082d | 2019-02-06 10:45:56 -0800 | [diff] [blame] | 1147 | return std::make_unique<Service>(name, flags, *uid, *gid, supp_gids, namespace_flags, seclabel, |
| 1148 | nullptr, str_args); |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1149 | } |
| 1150 | |
Tom Cherry | 5938379 | 2017-07-26 16:09:09 -0700 | [diff] [blame] | 1151 | // Shutdown services in the opposite order that they were started. |
Tom Cherry | 911b9b1 | 2017-07-27 16:20:58 -0700 | [diff] [blame] | 1152 | const std::vector<Service*> ServiceList::services_in_shutdown_order() const { |
Tom Cherry | 5938379 | 2017-07-26 16:09:09 -0700 | [diff] [blame] | 1153 | std::vector<Service*> shutdown_services; |
| 1154 | for (const auto& service : services_) { |
| 1155 | if (service->start_order() > 0) shutdown_services.emplace_back(service.get()); |
| 1156 | } |
| 1157 | std::sort(shutdown_services.begin(), shutdown_services.end(), |
| 1158 | [](const auto& a, const auto& b) { return a->start_order() > b->start_order(); }); |
Tom Cherry | 911b9b1 | 2017-07-27 16:20:58 -0700 | [diff] [blame] | 1159 | return shutdown_services; |
Tom Cherry | 5938379 | 2017-07-26 16:09:09 -0700 | [diff] [blame] | 1160 | } |
| 1161 | |
Tom Cherry | 911b9b1 | 2017-07-27 16:20:58 -0700 | [diff] [blame] | 1162 | void ServiceList::RemoveService(const Service& svc) { |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1163 | auto svc_it = std::find_if(services_.begin(), services_.end(), |
| 1164 | [&svc] (const std::unique_ptr<Service>& s) { |
| 1165 | return svc.name() == s->name(); |
| 1166 | }); |
| 1167 | if (svc_it == services_.end()) { |
| 1168 | return; |
| 1169 | } |
| 1170 | |
| 1171 | services_.erase(svc_it); |
| 1172 | } |
| 1173 | |
Tom Cherry | 911b9b1 | 2017-07-27 16:20:58 -0700 | [diff] [blame] | 1174 | void ServiceList::DumpState() const { |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1175 | for (const auto& s : services_) { |
| 1176 | s->DumpState(); |
| 1177 | } |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1178 | } |
| 1179 | |
Martijn Coenen | 70788f9 | 2019-04-23 16:26:01 +0200 | [diff] [blame] | 1180 | void ServiceList::MarkPostData() { |
| 1181 | post_data_ = true; |
| 1182 | } |
| 1183 | |
| 1184 | bool ServiceList::IsPostData() { |
| 1185 | return post_data_; |
| 1186 | } |
| 1187 | |
Jiyong Park | 80aa447 | 2018-11-12 12:08:41 +0900 | [diff] [blame] | 1188 | void ServiceList::MarkServicesUpdate() { |
| 1189 | services_update_finished_ = true; |
| 1190 | |
| 1191 | // start the delayed services |
| 1192 | for (const auto& name : delayed_service_names_) { |
| 1193 | Service* service = FindService(name); |
| 1194 | if (service == nullptr) { |
| 1195 | LOG(ERROR) << "delayed service '" << name << "' could not be found."; |
| 1196 | continue; |
| 1197 | } |
| 1198 | if (auto result = service->Start(); !result) { |
Jiyong Park | 8fd64c8 | 2019-05-31 03:43:34 +0900 | [diff] [blame] | 1199 | LOG(ERROR) << result.error().message(); |
Jiyong Park | 80aa447 | 2018-11-12 12:08:41 +0900 | [diff] [blame] | 1200 | } |
| 1201 | } |
| 1202 | delayed_service_names_.clear(); |
| 1203 | } |
| 1204 | |
| 1205 | void ServiceList::DelayService(const Service& service) { |
| 1206 | if (services_update_finished_) { |
| 1207 | LOG(ERROR) << "Cannot delay the start of service '" << service.name() |
| 1208 | << "' because all services are already updated. Ignoring."; |
| 1209 | return; |
| 1210 | } |
| 1211 | delayed_service_names_.emplace_back(service.name()); |
| 1212 | } |
| 1213 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 1214 | Result<void> ServiceParser::ParseSection(std::vector<std::string>&& args, |
| 1215 | const std::string& filename, int line) { |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1216 | if (args.size() < 3) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 1217 | return Error() << "services must have a name and a program"; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1218 | } |
| 1219 | |
| 1220 | const std::string& name = args[1]; |
| 1221 | if (!IsValidName(name)) { |
Tom Cherry | 89bcc85 | 2017-08-02 17:01:36 -0700 | [diff] [blame] | 1222 | return Error() << "invalid service name '" << name << "'"; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1223 | } |
| 1224 | |
Jiyong Park | 80aa447 | 2018-11-12 12:08:41 +0900 | [diff] [blame] | 1225 | filename_ = filename; |
| 1226 | |
Tom Cherry | cb0f9bb | 2017-09-12 15:58:47 -0700 | [diff] [blame] | 1227 | Subcontext* restart_action_subcontext = nullptr; |
| 1228 | if (subcontexts_) { |
| 1229 | for (auto& subcontext : *subcontexts_) { |
Elliott Hughes | 579e682 | 2017-12-20 09:41:00 -0800 | [diff] [blame] | 1230 | if (StartsWith(filename, subcontext.path_prefix())) { |
Tom Cherry | cb0f9bb | 2017-09-12 15:58:47 -0700 | [diff] [blame] | 1231 | restart_action_subcontext = &subcontext; |
| 1232 | break; |
| 1233 | } |
| 1234 | } |
| 1235 | } |
| 1236 | |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1237 | std::vector<std::string> str_args(args.begin() + 2, args.end()); |
Tom Cherry | 40acb37 | 2018-08-01 13:41:12 -0700 | [diff] [blame] | 1238 | |
| 1239 | if (SelinuxGetVendorAndroidVersion() <= __ANDROID_API_P__) { |
| 1240 | if (str_args[0] == "/sbin/watchdogd") { |
| 1241 | str_args[0] = "/system/bin/watchdogd"; |
| 1242 | } |
| 1243 | } |
| 1244 | |
Tom Cherry | cb0f9bb | 2017-09-12 15:58:47 -0700 | [diff] [blame] | 1245 | service_ = std::make_unique<Service>(name, restart_action_subcontext, str_args); |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 1246 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1247 | } |
| 1248 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 1249 | Result<void> ServiceParser::ParseLineSection(std::vector<std::string>&& args, int line) { |
| 1250 | return service_ ? service_->ParseLine(std::move(args)) : Result<void>{}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1251 | } |
| 1252 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 1253 | Result<void> ServiceParser::EndSection() { |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1254 | if (service_) { |
Steven Moreland | 5e1bea3 | 2017-11-10 14:43:58 -0800 | [diff] [blame] | 1255 | Service* old_service = service_list_->FindService(service_->name()); |
| 1256 | if (old_service) { |
Steven Moreland | 6f5333a | 2017-11-13 15:31:54 -0800 | [diff] [blame] | 1257 | if (!service_->is_override()) { |
| 1258 | return Error() << "ignored duplicate definition of service '" << service_->name() |
| 1259 | << "'"; |
| 1260 | } |
| 1261 | |
Jiyong Park | 80aa447 | 2018-11-12 12:08:41 +0900 | [diff] [blame] | 1262 | if (StartsWith(filename_, "/apex/") && !old_service->is_updatable()) { |
| 1263 | return Error() << "cannot update a non-updatable service '" << service_->name() |
| 1264 | << "' with a config in APEX"; |
| 1265 | } |
| 1266 | |
Steven Moreland | 6f5333a | 2017-11-13 15:31:54 -0800 | [diff] [blame] | 1267 | service_list_->RemoveService(*old_service); |
| 1268 | old_service = nullptr; |
Steven Moreland | 5e1bea3 | 2017-11-10 14:43:58 -0800 | [diff] [blame] | 1269 | } |
| 1270 | |
Tom Cherry | 911b9b1 | 2017-07-27 16:20:58 -0700 | [diff] [blame] | 1271 | service_list_->AddService(std::move(service_)); |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1272 | } |
Steven Moreland | 7d0a5c3 | 2017-11-10 14:20:47 -0800 | [diff] [blame] | 1273 | |
Tom Cherry | bbcbc2f | 2019-06-10 11:08:01 -0700 | [diff] [blame^] | 1274 | return {}; |
Tom Cherry | b734990 | 2015-08-26 11:43:36 -0700 | [diff] [blame] | 1275 | } |
| 1276 | |
| 1277 | bool ServiceParser::IsValidName(const std::string& name) const { |
Elliott Hughes | b7788fd | 2017-02-28 09:54:36 -0800 | [diff] [blame] | 1278 | // Property names can be any length, but may only contain certain characters. |
| 1279 | // Property values can contain any characters, but may only be a certain length. |
| 1280 | // (The latter restriction is needed because `start` and `stop` work by writing |
| 1281 | // the service name to the "ctl.start" and "ctl.stop" properties.) |
Tom Cherry | de6bd50 | 2018-02-13 16:50:08 -0800 | [diff] [blame] | 1282 | return IsLegalPropertyName("init.svc." + name) && name.size() <= PROP_VALUE_MAX; |
Tom Cherry | bac3299 | 2015-07-31 12:45:25 -0700 | [diff] [blame] | 1283 | } |
Tom Cherry | 81f5d3e | 2017-06-22 12:53:17 -0700 | [diff] [blame] | 1284 | |
| 1285 | } // namespace init |
| 1286 | } // namespace android |