Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 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 | #define LOG_TAG "Posix" |
| 18 | |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 19 | #include "AsynchronousCloseMonitor.h" |
Ruben Brunk | 15c1945 | 2013-09-09 17:01:23 -0700 | [diff] [blame] | 20 | #include "cutils/log.h" |
Elliott Hughes | ad9208a | 2013-02-05 18:01:08 -0800 | [diff] [blame] | 21 | #include "ExecStrings.h" |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 22 | #include "JNIHelp.h" |
| 23 | #include "JniConstants.h" |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 24 | #include "JniException.h" |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 25 | #include "NetworkUtilities.h" |
Elliott Hughes | 6c1e5f4 | 2013-01-25 15:10:58 -0800 | [diff] [blame] | 26 | #include "Portability.h" |
Elliott Hughes | 0b6b3e1 | 2014-01-31 15:29:15 -0800 | [diff] [blame] | 27 | #include "readlink.h" |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 28 | #include "ScopedBytes.h" |
Elliott Hughes | e9f1204 | 2011-05-11 11:48:46 -0700 | [diff] [blame] | 29 | #include "ScopedLocalRef.h" |
Elliott Hughes | 0f746ff5 | 2011-03-22 16:10:21 -0700 | [diff] [blame] | 30 | #include "ScopedPrimitiveArray.h" |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 31 | #include "ScopedUtfChars.h" |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 32 | #include "toStringArray.h" |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 33 | |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 34 | #include <arpa/inet.h> |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 35 | #include <errno.h> |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 36 | #include <fcntl.h> |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 37 | #include <linux/rtnetlink.h> |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 38 | #include <net/if.h> |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 39 | #include <netdb.h> |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 40 | #include <netinet/in.h> |
Lorenzo Colitti | a8b7587 | 2015-03-12 01:23:28 +0900 | [diff] [blame] | 41 | #include <netpacket/packet.h> |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 42 | #include <poll.h> |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 43 | #include <pwd.h> |
Elliott Hughes | a5fb706 | 2011-04-28 15:36:47 -0700 | [diff] [blame] | 44 | #include <signal.h> |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 45 | #include <stdlib.h> |
Elliott Hughes | 461d0d8 | 2011-03-28 15:12:20 -0700 | [diff] [blame] | 46 | #include <sys/ioctl.h> |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 47 | #include <sys/mman.h> |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 48 | #ifndef __APPLE__ |
Nick Kralevich | 5215e4c | 2014-04-25 14:59:37 -0700 | [diff] [blame] | 49 | #include <sys/prctl.h> |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 50 | #endif |
Elliott Hughes | 59e4744 | 2011-03-24 11:36:07 -0700 | [diff] [blame] | 51 | #include <sys/socket.h> |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 52 | #include <sys/stat.h> |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 53 | #ifdef __APPLE__ |
| 54 | #include <sys/statvfs.h> |
| 55 | #endif |
Elliott Hughes | 069525a | 2013-07-30 11:47:25 -0700 | [diff] [blame] | 56 | #include <sys/syscall.h> |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 57 | #include <sys/time.h> |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 58 | #include <sys/types.h> |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 59 | #include <sys/uio.h> |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 60 | #include <sys/un.h> |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 61 | #include <sys/utsname.h> |
Elliott Hughes | 9e67ca7 | 2011-05-19 15:25:10 -0700 | [diff] [blame] | 62 | #include <sys/wait.h> |
Jeff Sharkey | 90246a0 | 2015-07-02 12:04:00 -0700 | [diff] [blame] | 63 | #include <sys/xattr.h> |
Johan Redestig | bb5816a | 2012-01-10 17:48:01 +0900 | [diff] [blame] | 64 | #include <termios.h> |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 65 | #include <unistd.h> |
Ian Rogers | b3aacde | 2014-11-04 15:21:13 -0800 | [diff] [blame] | 66 | #include <memory> |
Ian Rogers | efae383 | 2014-06-10 23:29:14 -0700 | [diff] [blame] | 67 | |
| 68 | #ifndef __unused |
Ian Rogers | 37dd0ac | 2014-06-09 23:05:14 -0700 | [diff] [blame] | 69 | #define __unused __attribute__((__unused__)) |
Ian Rogers | efae383 | 2014-06-10 23:29:14 -0700 | [diff] [blame] | 70 | #endif |
Ian Rogers | 37dd0ac | 2014-06-09 23:05:14 -0700 | [diff] [blame] | 71 | |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 72 | #define TO_JAVA_STRING(NAME, EXP) \ |
| 73 | jstring NAME = env->NewStringUTF(EXP); \ |
| 74 | if (NAME == NULL) return NULL; |
| 75 | |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 76 | struct addrinfo_deleter { |
| 77 | void operator()(addrinfo* p) const { |
| 78 | if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. |
| 79 | freeaddrinfo(p); |
| 80 | } |
| 81 | } |
| 82 | }; |
| 83 | |
Lorenzo Colitti | b2a9923 | 2015-01-17 00:24:27 +0900 | [diff] [blame] | 84 | static bool isIPv4MappedAddress(const sockaddr *sa) { |
| 85 | const sockaddr_in6 *sin6 = reinterpret_cast<const sockaddr_in6*>(sa); |
| 86 | return sa != NULL && sa->sa_family == AF_INET6 && |
| 87 | (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr) || |
| 88 | IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)); // We map 0.0.0.0 to ::, so :: is mapped. |
| 89 | } |
| 90 | |
| 91 | /** |
| 92 | * Perform a socket operation that specifies an IP address, possibly falling back from specifying |
| 93 | * the address as an IPv4-mapped IPv6 address in a struct sockaddr_in6 to specifying it as an IPv4 |
| 94 | * address in a struct sockaddr_in. |
| 95 | * |
| 96 | * This is needed because all sockets created by the java.net APIs are IPv6 sockets, and on those |
| 97 | * sockets, IPv4 operations use IPv4-mapped addresses stored in a struct sockaddr_in6. But sockets |
| 98 | * created using Posix.socket(AF_INET, ...) are IPv4 sockets and only support operations using IPv4 |
| 99 | * socket addresses structures. |
| 100 | */ |
| 101 | #define NET_IPV4_FALLBACK(jni_env, return_type, syscall_name, java_fd, java_addr, port, null_addr_ok, args...) ({ \ |
| 102 | return_type _rc = -1; \ |
| 103 | do { \ |
| 104 | sockaddr_storage _ss; \ |
| 105 | socklen_t _salen; \ |
| 106 | if (java_addr == NULL && null_addr_ok) { \ |
| 107 | /* No IP address specified (e.g., sendto() on a connected socket). */ \ |
| 108 | _salen = 0; \ |
| 109 | } else if (!inetAddressToSockaddr(jni_env, java_addr, port, _ss, _salen)) { \ |
| 110 | /* Invalid socket address, return -1. inetAddressToSockaddr has already thrown. */ \ |
| 111 | break; \ |
| 112 | } \ |
| 113 | sockaddr* _sa = _salen ? reinterpret_cast<sockaddr*>(&_ss) : NULL; \ |
| 114 | /* inetAddressToSockaddr always returns an IPv6 sockaddr. Assume that java_fd was created \ |
| 115 | * by Java API calls, which always create IPv6 socket fds, and pass it in as is. */ \ |
| 116 | _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \ |
| 117 | if (_rc == -1 && errno == EAFNOSUPPORT && _salen && isIPv4MappedAddress(_sa)) { \ |
| 118 | /* We passed in an IPv4 address in an IPv6 sockaddr and the kernel told us that we got \ |
| 119 | * the address family wrong. Pass in the same address in an IPv4 sockaddr. */ \ |
| 120 | jni_env->ExceptionClear(); \ |
| 121 | if (!inetAddressToSockaddrVerbatim(jni_env, java_addr, port, _ss, _salen)) { \ |
| 122 | break; \ |
| 123 | } \ |
| 124 | _sa = reinterpret_cast<sockaddr*>(&_ss); \ |
| 125 | _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \ |
| 126 | } \ |
| 127 | } while (0); \ |
| 128 | _rc; }) \ |
| 129 | |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 130 | /** |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 131 | * Used to retry networking system calls that can be interrupted with a signal. Unlike |
| 132 | * TEMP_FAILURE_RETRY, this also handles the case where |
| 133 | * AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal a close() or |
| 134 | * Thread.interrupt(). Other signals that result in an EINTR result are ignored and the system call |
| 135 | * is retried. |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 136 | * |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 137 | * Returns the result of the system call though a Java exception will be pending if the result is |
| 138 | * -1: a SocketException if signaled via AsynchronousCloseMonitor, or ErrnoException for other |
| 139 | * failures. |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 140 | */ |
Elliott Hughes | 1124a81 | 2012-08-28 17:57:02 -0700 | [diff] [blame] | 141 | #define NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ |
| 142 | return_type _rc = -1; \ |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 143 | do { \ |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 144 | bool _wasSignaled; \ |
| 145 | int _syscallErrno; \ |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 146 | { \ |
Elliott Hughes | 1124a81 | 2012-08-28 17:57:02 -0700 | [diff] [blame] | 147 | int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 148 | AsynchronousCloseMonitor _monitor(_fd); \ |
Elliott Hughes | 1124a81 | 2012-08-28 17:57:02 -0700 | [diff] [blame] | 149 | _rc = syscall_name(_fd, __VA_ARGS__); \ |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 150 | _syscallErrno = errno; \ |
| 151 | _wasSignaled = _monitor.wasSignaled(); \ |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 152 | } \ |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 153 | if (_wasSignaled) { \ |
| 154 | jniThrowException(jni_env, "java/net/SocketException", "Socket closed"); \ |
Serguei Katkov | 5d7c0a3 | 2014-05-15 18:32:02 +0700 | [diff] [blame] | 155 | _rc = -1; \ |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 156 | break; \ |
| 157 | } \ |
| 158 | if (_rc == -1 && _syscallErrno != EINTR) { \ |
| 159 | /* TODO: with a format string we could show the arguments too, like strace(1). */ \ |
| 160 | throwErrnoException(jni_env, # syscall_name); \ |
| 161 | break; \ |
| 162 | } \ |
| 163 | } while (_rc == -1); /* _syscallErrno == EINTR && !_wasSignaled */ \ |
| 164 | _rc; }) |
| 165 | |
| 166 | /** |
| 167 | * Used to retry system calls that can be interrupted with a signal. Unlike TEMP_FAILURE_RETRY, this |
| 168 | * also handles the case where AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal |
| 169 | * a close() or Thread.interrupt(). Other signals that result in an EINTR result are ignored and the |
| 170 | * system call is retried. |
| 171 | * |
| 172 | * Returns the result of the system call though a Java exception will be pending if the result is |
| 173 | * -1: an IOException if the file descriptor is already closed, a InterruptedIOException if signaled |
| 174 | * via AsynchronousCloseMonitor, or ErrnoException for other failures. |
| 175 | */ |
| 176 | #define IO_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ |
| 177 | return_type _rc = -1; \ |
Neil Fuller | 99a0c82 | 2014-11-27 17:10:45 +0000 | [diff] [blame] | 178 | do { \ |
| 179 | bool _wasSignaled; \ |
| 180 | int _syscallErrno; \ |
| 181 | { \ |
| 182 | int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ |
| 183 | AsynchronousCloseMonitor _monitor(_fd); \ |
| 184 | _rc = syscall_name(_fd, __VA_ARGS__); \ |
| 185 | _syscallErrno = errno; \ |
| 186 | _wasSignaled = _monitor.wasSignaled(); \ |
| 187 | } \ |
| 188 | if (_wasSignaled) { \ |
| 189 | jniThrowException(jni_env, "java/io/InterruptedIOException", # syscall_name " interrupted"); \ |
| 190 | _rc = -1; \ |
| 191 | break; \ |
| 192 | } \ |
| 193 | if (_rc == -1 && _syscallErrno != EINTR) { \ |
| 194 | /* TODO: with a format string we could show the arguments too, like strace(1). */ \ |
| 195 | throwErrnoException(jni_env, # syscall_name); \ |
| 196 | break; \ |
| 197 | } \ |
| 198 | } while (_rc == -1); /* && _syscallErrno == EINTR && !_wasSignaled */ \ |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 199 | _rc; }) |
| 200 | |
Lorenzo Colitti | b2a9923 | 2015-01-17 00:24:27 +0900 | [diff] [blame] | 201 | #define NULL_ADDR_OK true |
| 202 | #define NULL_ADDR_FORBIDDEN false |
| 203 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 204 | static void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, |
| 205 | const char* functionName, int error) { |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 206 | jthrowable cause = NULL; |
| 207 | if (env->ExceptionCheck()) { |
| 208 | cause = env->ExceptionOccurred(); |
| 209 | env->ExceptionClear(); |
| 210 | } |
| 211 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 212 | ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); |
| 213 | if (detailMessage.get() == NULL) { |
Elliott Hughes | f5333fd | 2011-03-18 14:13:08 -0700 | [diff] [blame] | 214 | // Not really much we can do here. We're probably dead in the water, |
| 215 | // but let's try to stumble on... |
| 216 | env->ExceptionClear(); |
| 217 | } |
| 218 | |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 219 | jobject exception; |
| 220 | if (cause != NULL) { |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 221 | exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 222 | } else { |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 223 | exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 224 | } |
| 225 | env->Throw(reinterpret_cast<jthrowable>(exception)); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 226 | } |
| 227 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 228 | static void throwErrnoException(JNIEnv* env, const char* functionName) { |
| 229 | int error = errno; |
| 230 | static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, |
| 231 | "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); |
| 232 | static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, |
| 233 | "<init>", "(Ljava/lang/String;I)V"); |
| 234 | throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); |
| 235 | } |
| 236 | |
| 237 | static void throwGaiException(JNIEnv* env, const char* functionName, int error) { |
Elliott Hughes | c1cee0d | 2013-01-18 16:59:02 -0800 | [diff] [blame] | 238 | // Cache the methods ids before we throw, so we don't call GetMethodID with a pending exception. |
| 239 | static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", |
| 240 | "(Ljava/lang/String;ILjava/lang/Throwable;)V"); |
| 241 | static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", |
| 242 | "(Ljava/lang/String;I)V"); |
| 243 | if (errno != 0) { |
Elliott Hughes | 75cf149 | 2012-02-15 17:05:50 -0800 | [diff] [blame] | 244 | // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to |
| 245 | // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES |
| 246 | // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a |
| 247 | // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM. |
| 248 | // http://code.google.com/p/android/issues/detail?id=15722 |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 249 | throwErrnoException(env, functionName); |
| 250 | // Deliberately fall through to throw another exception... |
| 251 | } |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 252 | throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); |
| 253 | } |
| 254 | |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 255 | template <typename rc_t> |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 256 | static rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 257 | if (rc == rc_t(-1)) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 258 | throwErrnoException(env, name); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 259 | } |
| 260 | return rc; |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 261 | } |
| 262 | |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 263 | template <typename ScopedT> |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 264 | class IoVec { |
| 265 | public: |
| 266 | IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { |
| 267 | } |
| 268 | |
| 269 | bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { |
| 270 | // We can't delete our local references until after the I/O, so make sure we have room. |
| 271 | if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { |
| 272 | return false; |
| 273 | } |
| 274 | ScopedIntArrayRO offsets(mEnv, javaOffsets); |
| 275 | if (offsets.get() == NULL) { |
| 276 | return false; |
| 277 | } |
| 278 | ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); |
| 279 | if (byteCounts.get() == NULL) { |
| 280 | return false; |
| 281 | } |
| 282 | // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 283 | // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX). |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 284 | for (size_t i = 0; i < mBufferCount; ++i) { |
Elliott Hughes | e9f1204 | 2011-05-11 11:48:46 -0700 | [diff] [blame] | 285 | jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 286 | mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); |
| 287 | jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 288 | if (ptr == NULL) { |
| 289 | return false; |
| 290 | } |
| 291 | struct iovec iov; |
| 292 | iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); |
| 293 | iov.iov_len = byteCounts[i]; |
| 294 | mIoVec.push_back(iov); |
| 295 | } |
| 296 | return true; |
| 297 | } |
| 298 | |
| 299 | ~IoVec() { |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 300 | for (size_t i = 0; i < mScopedBuffers.size(); ++i) { |
| 301 | delete mScopedBuffers[i]; |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 302 | } |
| 303 | mEnv->PopLocalFrame(NULL); |
| 304 | } |
| 305 | |
| 306 | iovec* get() { |
| 307 | return &mIoVec[0]; |
| 308 | } |
| 309 | |
| 310 | size_t size() { |
| 311 | return mBufferCount; |
| 312 | } |
| 313 | |
| 314 | private: |
| 315 | JNIEnv* mEnv; |
| 316 | size_t mBufferCount; |
| 317 | std::vector<iovec> mIoVec; |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 318 | std::vector<ScopedT*> mScopedBuffers; |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 319 | }; |
| 320 | |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 321 | /** |
| 322 | * Returns the address and length of sockaddr_un.sun_path in ss. As per unix(7) sa_len should be |
| 323 | * the length of ss as returned by getsockname(2), getpeername(2), or accept(2). After the call path |
| 324 | * will point to sun_path and pathLength will contain the sun_path length. If pathLength is 0 then |
| 325 | * the sockaddr_un refers to is an unnamed socket. See unix(7) for more information. |
| 326 | */ |
| 327 | static bool getUnixSocketPath(JNIEnv* env, const sockaddr_storage& ss, const socklen_t& sa_len, |
| 328 | const void*& path, size_t& pathLength) { |
| 329 | |
| 330 | if (ss.ss_family != AF_UNIX) { |
| 331 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 332 | "getUnixSocketPath unsupported ss_family: %i", ss.ss_family); |
| 333 | return false; |
| 334 | } |
| 335 | const struct sockaddr_un* un_addr = reinterpret_cast<const struct sockaddr_un*>(&ss); |
| 336 | path = &un_addr->sun_path; |
| 337 | // See unix(7) for details. |
| 338 | if (sa_len == sizeof(sa_family_t)) { |
| 339 | // unnamed |
| 340 | pathLength = 0; |
| 341 | } else { |
| 342 | // pathname or abstract. We just return the fixed array length here. |
| 343 | pathLength = sizeof(sockaddr_un::sun_path); |
| 344 | } |
| 345 | return true; |
| 346 | } |
| 347 | |
| 348 | static jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage& ss, const socklen_t sa_len) { |
| 349 | if (ss.ss_family == AF_INET || ss.ss_family == AF_INET6) { |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 350 | jint port; |
| 351 | jobject inetAddress = sockaddrToInetAddress(env, ss, &port); |
| 352 | if (inetAddress == NULL) { |
| 353 | return NULL; // Exception already thrown. |
| 354 | } |
| 355 | static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, |
| 356 | "<init>", "(Ljava/net/InetAddress;I)V"); |
| 357 | return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 358 | } else if (ss.ss_family == AF_UNIX) { |
| 359 | static jmethodID ctor = env->GetMethodID(JniConstants::unixSocketAddressClass, |
| 360 | "<init>", "([B)V"); |
| 361 | |
| 362 | const void* pathAddress; |
| 363 | size_t pathLength; |
| 364 | if (!getUnixSocketPath(env, ss, sa_len, pathAddress, pathLength)) { |
| 365 | return NULL; |
| 366 | } |
| 367 | |
| 368 | ScopedLocalRef<jbyteArray> byteArray(env, env->NewByteArray(pathLength)); |
| 369 | if (byteArray.get() == NULL) { |
| 370 | return NULL; |
| 371 | } |
| 372 | env->SetByteArrayRegion(byteArray.get(), 0, pathLength, |
| 373 | reinterpret_cast<const jbyte*>(pathAddress)); |
| 374 | return env->NewObject(JniConstants::unixSocketAddressClass, ctor, byteArray.get()); |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 375 | } else if (ss.ss_family == AF_NETLINK) { |
| 376 | const struct sockaddr_nl* nl_addr = reinterpret_cast<const struct sockaddr_nl*>(&ss); |
| 377 | static jmethodID ctor = env->GetMethodID(JniConstants::netlinkSocketAddressClass, |
| 378 | "<init>", "(II)V"); |
| 379 | return env->NewObject(JniConstants::netlinkSocketAddressClass, ctor, |
| 380 | static_cast<jint>(nl_addr->nl_pid), |
| 381 | static_cast<jint>(nl_addr->nl_groups)); |
Lorenzo Colitti | 00bb2a5 | 2015-03-12 16:30:07 +0900 | [diff] [blame] | 382 | } else if (ss.ss_family == AF_PACKET) { |
| 383 | const struct sockaddr_ll* sll = reinterpret_cast<const struct sockaddr_ll*>(&ss); |
| 384 | static jmethodID ctor = env->GetMethodID(JniConstants::packetSocketAddressClass, |
| 385 | "<init>", "(SISB[B)V"); |
| 386 | ScopedLocalRef<jbyteArray> byteArray(env, env->NewByteArray(sll->sll_halen)); |
| 387 | if (byteArray.get() == NULL) { |
| 388 | return NULL; |
| 389 | } |
| 390 | env->SetByteArrayRegion(byteArray.get(), 0, sll->sll_halen, |
| 391 | reinterpret_cast<const jbyte*>(sll->sll_addr)); |
| 392 | jobject packetSocketAddress = env->NewObject(JniConstants::packetSocketAddressClass, ctor, |
| 393 | static_cast<jshort>(ntohs(sll->sll_protocol)), |
| 394 | static_cast<jint>(sll->sll_ifindex), |
| 395 | static_cast<jshort>(sll->sll_hatype), |
| 396 | static_cast<jbyte>(sll->sll_pkttype), |
| 397 | byteArray.get()); |
| 398 | return packetSocketAddress; |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 399 | } |
Lorenzo Colitti | 00bb2a5 | 2015-03-12 16:30:07 +0900 | [diff] [blame] | 400 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", "unsupported ss_family: %d", |
| 401 | ss.ss_family); |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 402 | return NULL; |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 403 | } |
| 404 | |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 405 | static jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) { |
| 406 | TO_JAVA_STRING(pw_name, pw.pw_name); |
| 407 | TO_JAVA_STRING(pw_dir, pw.pw_dir); |
| 408 | TO_JAVA_STRING(pw_shell, pw.pw_shell); |
| 409 | static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>", |
| 410 | "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V"); |
| 411 | return env->NewObject(JniConstants::structPasswdClass, ctor, |
| 412 | pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell); |
| 413 | } |
| 414 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 415 | static jobject makeStructStat(JNIEnv* env, const struct stat& sb) { |
| 416 | static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", |
| 417 | "(JJIJIIJJJJJJJ)V"); |
| 418 | return env->NewObject(JniConstants::structStatClass, ctor, |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 419 | static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), |
| 420 | static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), |
| 421 | static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), |
| 422 | static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), |
| 423 | static_cast<jlong>(sb.st_atime), static_cast<jlong>(sb.st_mtime), |
| 424 | static_cast<jlong>(sb.st_ctime), static_cast<jlong>(sb.st_blksize), |
| 425 | static_cast<jlong>(sb.st_blocks)); |
| 426 | } |
| 427 | |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 428 | static jobject makeStructStatVfs(JNIEnv* env, const struct statvfs& sb) { |
Elliott Hughes | 6c1e5f4 | 2013-01-25 15:10:58 -0800 | [diff] [blame] | 429 | #if defined(__APPLE__) |
| 430 | // Mac OS has no f_namelen field in struct statfs. |
| 431 | jlong max_name_length = 255; // __DARWIN_MAXNAMLEN |
| 432 | #else |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 433 | jlong max_name_length = static_cast<jlong>(sb.f_namemax); |
Elliott Hughes | 6c1e5f4 | 2013-01-25 15:10:58 -0800 | [diff] [blame] | 434 | #endif |
| 435 | |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 436 | static jmethodID ctor = env->GetMethodID(JniConstants::structStatVfsClass, "<init>", |
| 437 | "(JJJJJJJJJJJ)V"); |
| 438 | return env->NewObject(JniConstants::structStatVfsClass, ctor, |
| 439 | static_cast<jlong>(sb.f_bsize), |
| 440 | static_cast<jlong>(sb.f_frsize), |
| 441 | static_cast<jlong>(sb.f_blocks), |
| 442 | static_cast<jlong>(sb.f_bfree), |
| 443 | static_cast<jlong>(sb.f_bavail), |
| 444 | static_cast<jlong>(sb.f_files), |
| 445 | static_cast<jlong>(sb.f_ffree), |
| 446 | static_cast<jlong>(sb.f_favail), |
| 447 | static_cast<jlong>(sb.f_fsid), |
| 448 | static_cast<jlong>(sb.f_flag), |
| 449 | max_name_length); |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 450 | } |
| 451 | |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 452 | static jobject makeStructLinger(JNIEnv* env, const struct linger& l) { |
| 453 | static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); |
| 454 | return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); |
| 455 | } |
| 456 | |
| 457 | static jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { |
| 458 | static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); |
| 459 | return env->NewObject(JniConstants::structTimevalClass, ctor, |
| 460 | static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); |
| 461 | } |
| 462 | |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 463 | static jobject makeStructUcred(JNIEnv* env, const struct ucred& u __unused) { |
| 464 | #ifdef __APPLE__ |
| 465 | jniThrowException(env, "java/lang/UnsupportedOperationException", "unimplemented support for ucred on a Mac"); |
| 466 | return NULL; |
| 467 | #else |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 468 | static jmethodID ctor = env->GetMethodID(JniConstants::structUcredClass, "<init>", "(III)V"); |
| 469 | return env->NewObject(JniConstants::structUcredClass, ctor, u.pid, u.uid, u.gid); |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 470 | #endif |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 471 | } |
| 472 | |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 473 | static jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 474 | TO_JAVA_STRING(sysname, buf.sysname); |
| 475 | TO_JAVA_STRING(nodename, buf.nodename); |
| 476 | TO_JAVA_STRING(release, buf.release); |
| 477 | TO_JAVA_STRING(version, buf.version); |
| 478 | TO_JAVA_STRING(machine, buf.machine); |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 479 | static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", |
| 480 | "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); |
| 481 | return env->NewObject(JniConstants::structUtsnameClass, ctor, |
| 482 | sysname, nodename, release, version, machine); |
| 483 | }; |
| 484 | |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 485 | static bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) { |
| 486 | ScopedUtfChars interfaceName(env, javaInterfaceName); |
| 487 | if (interfaceName.c_str() == NULL) { |
| 488 | return false; |
| 489 | } |
| 490 | memset(&req, 0, sizeof(req)); |
| 491 | strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name)); |
| 492 | req.ifr_name[sizeof(req.ifr_name) - 1] = '\0'; |
| 493 | return true; |
| 494 | } |
| 495 | |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 496 | static bool fillUnixSocketAddress(JNIEnv* env, jobject javaUnixSocketAddress, |
| 497 | const sockaddr_storage& ss, const socklen_t& sa_len) { |
| 498 | if (javaUnixSocketAddress == NULL) { |
| 499 | return true; |
| 500 | } |
| 501 | const void* pathAddress; |
| 502 | size_t pathLength; |
| 503 | if (!getUnixSocketPath(env, ss, sa_len, pathAddress, pathLength)) { |
| 504 | return false; |
| 505 | } |
| 506 | |
| 507 | static jfieldID sunPathFid = |
| 508 | env->GetFieldID(JniConstants::unixSocketAddressClass, "sun_path", "[B"); |
| 509 | ScopedLocalRef<jbyteArray> byteArray(env, env->NewByteArray(pathLength)); |
| 510 | if (byteArray.get() == NULL) { |
| 511 | return false; |
| 512 | } |
| 513 | if (pathLength > 0) { |
| 514 | env->SetByteArrayRegion(byteArray.get(), 0, pathLength, |
| 515 | reinterpret_cast<const jbyte*>(pathAddress)); |
| 516 | } |
| 517 | env->SetObjectField(javaUnixSocketAddress, sunPathFid, byteArray.get()); |
| 518 | return true; |
| 519 | } |
| 520 | |
| 521 | static bool fillInetSocketAddress(JNIEnv* env, jobject javaInetSocketAddress, |
| 522 | const sockaddr_storage& ss) { |
| 523 | if (javaInetSocketAddress == NULL) { |
Elliott Hughes | 553d98a | 2011-05-19 13:50:09 -0700 | [diff] [blame] | 524 | return true; |
| 525 | } |
| 526 | // Fill out the passed-in InetSocketAddress with the sender's IP address and port number. |
| 527 | jint port; |
| 528 | jobject sender = sockaddrToInetAddress(env, ss, &port); |
| 529 | if (sender == NULL) { |
| 530 | return false; |
| 531 | } |
| 532 | static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;"); |
| 533 | static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I"); |
| 534 | env->SetObjectField(javaInetSocketAddress, addressFid, sender); |
| 535 | env->SetIntField(javaInetSocketAddress, portFid, port); |
| 536 | return true; |
| 537 | } |
| 538 | |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 539 | static bool fillSocketAddress(JNIEnv* env, jobject javaSocketAddress, const sockaddr_storage& ss, |
| 540 | const socklen_t& sa_len) { |
| 541 | if (javaSocketAddress == NULL) { |
| 542 | return true; |
| 543 | } |
| 544 | |
| 545 | if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { |
| 546 | return fillInetSocketAddress(env, javaSocketAddress, ss); |
| 547 | } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::unixSocketAddressClass)) { |
| 548 | return fillUnixSocketAddress(env, javaSocketAddress, ss, sa_len); |
| 549 | } |
| 550 | jniThrowException(env, "java/lang/UnsupportedOperationException", |
| 551 | "unsupported SocketAddress subclass"); |
| 552 | return false; |
| 553 | |
| 554 | } |
| 555 | |
Lorenzo Colitti | f5fc4ad | 2015-03-13 16:27:11 +0900 | [diff] [blame] | 556 | static void javaInetSocketAddressToInetAddressAndPort( |
| 557 | JNIEnv* env, jobject javaInetSocketAddress, jobject& javaInetAddress, jint& port) { |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 558 | static jfieldID addressFid = env->GetFieldID( |
| 559 | JniConstants::inetSocketAddressClass, "addr", "Ljava/net/InetAddress;"); |
| 560 | static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "port", "I"); |
Lorenzo Colitti | f5fc4ad | 2015-03-13 16:27:11 +0900 | [diff] [blame] | 561 | javaInetAddress = env->GetObjectField(javaInetSocketAddress, addressFid); |
| 562 | port = env->GetIntField(javaInetSocketAddress, portFid); |
| 563 | } |
| 564 | |
| 565 | static bool javaInetSocketAddressToSockaddr( |
| 566 | JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { |
| 567 | jobject javaInetAddress; |
| 568 | jint port; |
| 569 | javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port); |
| 570 | return inetAddressToSockaddr(env, javaInetAddress, port, ss, sa_len); |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 571 | } |
| 572 | |
| 573 | static bool javaNetlinkSocketAddressToSockaddr( |
| 574 | JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { |
| 575 | static jfieldID nlPidFid = env->GetFieldID( |
| 576 | JniConstants::netlinkSocketAddressClass, "nlPortId", "I"); |
| 577 | static jfieldID nlGroupsFid = env->GetFieldID( |
| 578 | JniConstants::netlinkSocketAddressClass, "nlGroupsMask", "I"); |
| 579 | |
| 580 | sockaddr_nl *nlAddr = reinterpret_cast<sockaddr_nl *>(&ss); |
| 581 | nlAddr->nl_family = AF_NETLINK; |
| 582 | nlAddr->nl_pid = env->GetIntField(javaSocketAddress, nlPidFid); |
| 583 | nlAddr->nl_groups = env->GetIntField(javaSocketAddress, nlGroupsFid); |
| 584 | sa_len = sizeof(sockaddr_nl); |
| 585 | return true; |
| 586 | } |
| 587 | |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 588 | static bool javaUnixSocketAddressToSockaddr( |
| 589 | JNIEnv* env, jobject javaUnixSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { |
| 590 | static jfieldID sunPathFid = env->GetFieldID( |
| 591 | JniConstants::unixSocketAddressClass, "sun_path", "[B"); |
| 592 | |
| 593 | struct sockaddr_un* un_addr = reinterpret_cast<struct sockaddr_un*>(&ss); |
| 594 | un_addr->sun_family = AF_UNIX; |
| 595 | |
| 596 | jbyteArray javaSunPath = (jbyteArray) env->GetObjectField(javaUnixSocketAddress, sunPathFid); |
| 597 | jsize pathLength = env->GetArrayLength(javaSunPath); |
| 598 | if (pathLength == 0) { |
| 599 | sa_len = sizeof(sa_family_t); |
| 600 | } else { |
| 601 | const size_t sun_path_length = sizeof(sockaddr_un::sun_path); |
| 602 | if ((size_t) pathLength != sun_path_length) { |
| 603 | jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", |
| 604 | "sun_path incorrect size: expected=%i, was=%i", |
| 605 | sun_path_length, pathLength); |
| 606 | return false; |
| 607 | } |
| 608 | memset(&un_addr->sun_path, 0, sun_path_length); |
| 609 | env->GetByteArrayRegion(javaSunPath, 0, pathLength, (jbyte*) un_addr->sun_path); |
| 610 | sa_len = sizeof(sockaddr_un); |
| 611 | } |
| 612 | return true; |
| 613 | } |
| 614 | |
Lorenzo Colitti | 00bb2a5 | 2015-03-12 16:30:07 +0900 | [diff] [blame] | 615 | static bool javaPacketSocketAddressToSockaddr( |
| 616 | JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { |
| 617 | static jfieldID protocolFid = env->GetFieldID( |
| 618 | JniConstants::packetSocketAddressClass, "sll_protocol", "S"); |
| 619 | static jfieldID ifindexFid = env->GetFieldID( |
| 620 | JniConstants::packetSocketAddressClass, "sll_ifindex", "I"); |
| 621 | static jfieldID hatypeFid = env->GetFieldID( |
| 622 | JniConstants::packetSocketAddressClass, "sll_hatype", "S"); |
| 623 | static jfieldID pkttypeFid = env->GetFieldID( |
| 624 | JniConstants::packetSocketAddressClass, "sll_pkttype", "B"); |
| 625 | static jfieldID addrFid = env->GetFieldID( |
| 626 | JniConstants::packetSocketAddressClass, "sll_addr", "[B"); |
| 627 | |
| 628 | sockaddr_ll *sll = reinterpret_cast<sockaddr_ll *>(&ss); |
| 629 | sll->sll_family = AF_PACKET; |
Lorenzo Colitti | e027351 | 2015-03-18 12:35:02 +0900 | [diff] [blame] | 630 | sll->sll_protocol = htons(env->GetShortField(javaSocketAddress, protocolFid)); |
Lorenzo Colitti | 00bb2a5 | 2015-03-12 16:30:07 +0900 | [diff] [blame] | 631 | sll->sll_ifindex = env->GetIntField(javaSocketAddress, ifindexFid); |
| 632 | sll->sll_hatype = env->GetShortField(javaSocketAddress, hatypeFid); |
| 633 | sll->sll_pkttype = env->GetByteField(javaSocketAddress, pkttypeFid); |
| 634 | |
| 635 | jbyteArray sllAddr = (jbyteArray) env->GetObjectField(javaSocketAddress, addrFid); |
| 636 | if (sllAddr == NULL) { |
| 637 | sll->sll_halen = 0; |
| 638 | memset(&sll->sll_addr, 0, sizeof(sll->sll_addr)); |
| 639 | } else { |
| 640 | jsize len = env->GetArrayLength(sllAddr); |
| 641 | if ((size_t) len > sizeof(sll->sll_addr)) { |
| 642 | len = sizeof(sll->sll_addr); |
| 643 | } |
| 644 | sll->sll_halen = len; |
| 645 | env->GetByteArrayRegion(sllAddr, 0, len, (jbyte*) sll->sll_addr); |
| 646 | } |
| 647 | sa_len = sizeof(sockaddr_ll); |
| 648 | return true; |
| 649 | } |
| 650 | |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 651 | static bool javaSocketAddressToSockaddr( |
| 652 | JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { |
| 653 | if (javaSocketAddress == NULL) { |
| 654 | jniThrowNullPointerException(env, NULL); |
| 655 | return false; |
| 656 | } |
| 657 | |
| 658 | if (env->IsInstanceOf(javaSocketAddress, JniConstants::netlinkSocketAddressClass)) { |
| 659 | return javaNetlinkSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); |
| 660 | } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { |
| 661 | return javaInetSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); |
Lorenzo Colitti | 00bb2a5 | 2015-03-12 16:30:07 +0900 | [diff] [blame] | 662 | } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::packetSocketAddressClass)) { |
| 663 | return javaPacketSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 664 | } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::unixSocketAddressClass)) { |
| 665 | return javaUnixSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 666 | } |
| 667 | jniThrowException(env, "java/lang/UnsupportedOperationException", |
| 668 | "unsupported SocketAddress subclass"); |
| 669 | return false; |
| 670 | } |
| 671 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 672 | static jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { |
| 673 | ScopedUtfChars path(env, javaPath); |
| 674 | if (path.c_str() == NULL) { |
| 675 | return NULL; |
| 676 | } |
| 677 | struct stat sb; |
| 678 | int rc = isLstat ? TEMP_FAILURE_RETRY(lstat(path.c_str(), &sb)) |
| 679 | : TEMP_FAILURE_RETRY(stat(path.c_str(), &sb)); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 680 | if (rc == -1) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 681 | throwErrnoException(env, isLstat ? "lstat" : "stat"); |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 682 | return NULL; |
| 683 | } |
| 684 | return makeStructStat(env, sb); |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 685 | } |
| 686 | |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 687 | static jobject doGetSockName(JNIEnv* env, jobject javaFd, bool is_sockname) { |
| 688 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 689 | sockaddr_storage ss; |
| 690 | sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); |
| 691 | socklen_t byteCount = sizeof(ss); |
| 692 | memset(&ss, 0, byteCount); |
| 693 | int rc = is_sockname ? TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)) |
| 694 | : TEMP_FAILURE_RETRY(getpeername(fd, sa, &byteCount)); |
| 695 | if (rc == -1) { |
| 696 | throwErrnoException(env, is_sockname ? "getsockname" : "getpeername"); |
| 697 | return NULL; |
| 698 | } |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 699 | return makeSocketAddress(env, ss, byteCount); |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 700 | } |
| 701 | |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 702 | class Passwd { |
| 703 | public: |
| 704 | Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) { |
| 705 | mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX); |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 706 | mBuffer.reset(new char[mBufferSize]); |
| 707 | } |
| 708 | |
| 709 | jobject getpwnam(const char* name) { |
| 710 | return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult)); |
| 711 | } |
| 712 | |
| 713 | jobject getpwuid(uid_t uid) { |
| 714 | return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult)); |
| 715 | } |
| 716 | |
| 717 | struct passwd* get() { |
| 718 | return mResult; |
| 719 | } |
| 720 | |
| 721 | private: |
| 722 | jobject process(const char* syscall, int error) { |
| 723 | if (mResult == NULL) { |
| 724 | errno = error; |
| 725 | throwErrnoException(mEnv, syscall); |
| 726 | return NULL; |
| 727 | } |
| 728 | return makeStructPasswd(mEnv, *mResult); |
| 729 | } |
| 730 | |
| 731 | JNIEnv* mEnv; |
Ian Rogers | b3aacde | 2014-11-04 15:21:13 -0800 | [diff] [blame] | 732 | std::unique_ptr<char[]> mBuffer; |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 733 | size_t mBufferSize; |
| 734 | struct passwd mPwd; |
| 735 | struct passwd* mResult; |
| 736 | }; |
| 737 | |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 738 | static jobject Posix_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { |
Elliott Hughes | 553d98a | 2011-05-19 13:50:09 -0700 | [diff] [blame] | 739 | sockaddr_storage ss; |
| 740 | socklen_t sl = sizeof(ss); |
| 741 | memset(&ss, 0, sizeof(ss)); |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 742 | sockaddr* peer = (javaSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; |
| 743 | socklen_t* peerLength = (javaSocketAddress != NULL) ? &sl : 0; |
Elliott Hughes | 1124a81 | 2012-08-28 17:57:02 -0700 | [diff] [blame] | 744 | jint clientFd = NET_FAILURE_RETRY(env, int, accept, javaFd, peer, peerLength); |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 745 | if (clientFd == -1 || !fillSocketAddress(env, javaSocketAddress, ss, *peerLength)) { |
Elliott Hughes | 553d98a | 2011-05-19 13:50:09 -0700 | [diff] [blame] | 746 | close(clientFd); |
| 747 | return NULL; |
| 748 | } |
| 749 | return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL; |
| 750 | } |
| 751 | |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 752 | static jboolean Posix_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { |
| 753 | ScopedUtfChars path(env, javaPath); |
| 754 | if (path.c_str() == NULL) { |
| 755 | return JNI_FALSE; |
| 756 | } |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 757 | int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 758 | if (rc == -1) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 759 | throwErrnoException(env, "access"); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 760 | } |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 761 | return (rc == 0); |
| 762 | } |
| 763 | |
Elliott Hughes | da15009 | 2011-05-09 14:00:48 -0700 | [diff] [blame] | 764 | static void Posix_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { |
Elliott Hughes | 1124a81 | 2012-08-28 17:57:02 -0700 | [diff] [blame] | 765 | // We don't need the return value because we'll already have thrown. |
Lorenzo Colitti | b2a9923 | 2015-01-17 00:24:27 +0900 | [diff] [blame] | 766 | (void) NET_IPV4_FALLBACK(env, int, bind, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN); |
Elliott Hughes | da15009 | 2011-05-09 14:00:48 -0700 | [diff] [blame] | 767 | } |
| 768 | |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 769 | static void Posix_bindSocketAddress( |
| 770 | JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { |
| 771 | sockaddr_storage ss; |
| 772 | socklen_t sa_len; |
| 773 | if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { |
| 774 | return; // Exception already thrown. |
| 775 | } |
| 776 | |
| 777 | const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); |
| 778 | // We don't need the return value because we'll already have thrown. |
| 779 | (void) NET_FAILURE_RETRY(env, int, bind, javaFd, sa, sa_len); |
| 780 | } |
| 781 | |
Elliott Hughes | b719019 | 2011-03-23 17:14:34 -0700 | [diff] [blame] | 782 | static void Posix_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { |
| 783 | ScopedUtfChars path(env, javaPath); |
| 784 | if (path.c_str() == NULL) { |
| 785 | return; |
| 786 | } |
| 787 | throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); |
| 788 | } |
| 789 | |
Elliott Hughes | 44f7875 | 2012-08-16 12:29:52 -0700 | [diff] [blame] | 790 | static void Posix_chown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { |
| 791 | ScopedUtfChars path(env, javaPath); |
| 792 | if (path.c_str() == NULL) { |
| 793 | return; |
| 794 | } |
| 795 | throwIfMinusOne(env, "chown", TEMP_FAILURE_RETRY(chown(path.c_str(), uid, gid))); |
| 796 | } |
| 797 | |
Elliott Hughes | 462bdac | 2011-03-30 10:43:48 -0700 | [diff] [blame] | 798 | static void Posix_close(JNIEnv* env, jobject, jobject javaFd) { |
| 799 | // Get the FileDescriptor's 'fd' field and clear it. |
| 800 | // We need to do this before we can throw an IOException (http://b/3222087). |
| 801 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 802 | jniSetFileDescriptorOfFD(env, javaFd, -1); |
| 803 | |
| 804 | // Even if close(2) fails with EINTR, the fd will have been closed. |
| 805 | // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. |
| 806 | // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html |
| 807 | throwIfMinusOne(env, "close", close(fd)); |
| 808 | } |
| 809 | |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 810 | static void Posix_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { |
Lorenzo Colitti | b2a9923 | 2015-01-17 00:24:27 +0900 | [diff] [blame] | 811 | (void) NET_IPV4_FALLBACK(env, int, connect, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN); |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 812 | } |
| 813 | |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 814 | static void Posix_connectSocketAddress( |
| 815 | JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { |
| 816 | sockaddr_storage ss; |
| 817 | socklen_t sa_len; |
| 818 | if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { |
| 819 | return; // Exception already thrown. |
| 820 | } |
| 821 | |
| 822 | const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); |
| 823 | // We don't need the return value because we'll already have thrown. |
| 824 | (void) NET_FAILURE_RETRY(env, int, connect, javaFd, sa, sa_len); |
| 825 | } |
| 826 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 827 | static jobject Posix_dup(JNIEnv* env, jobject, jobject javaOldFd) { |
| 828 | int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); |
| 829 | int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); |
| 830 | return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; |
| 831 | } |
| 832 | |
| 833 | static jobject Posix_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { |
| 834 | int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); |
| 835 | int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); |
| 836 | return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; |
| 837 | } |
| 838 | |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 839 | static jobjectArray Posix_environ(JNIEnv* env, jobject) { |
| 840 | extern char** environ; // Standard, but not in any header file. |
| 841 | return toStringArray(env, environ); |
| 842 | } |
| 843 | |
Nick Kralevich | 798f855 | 2013-02-05 13:02:13 -0800 | [diff] [blame] | 844 | static void Posix_execve(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv, jobjectArray javaEnvp) { |
| 845 | ScopedUtfChars path(env, javaFilename); |
| 846 | if (path.c_str() == NULL) { |
| 847 | return; |
| 848 | } |
| 849 | |
Elliott Hughes | ad9208a | 2013-02-05 18:01:08 -0800 | [diff] [blame] | 850 | ExecStrings argv(env, javaArgv); |
| 851 | ExecStrings envp(env, javaEnvp); |
Elliott Hughes | fa54209 | 2014-12-15 16:14:56 -0800 | [diff] [blame] | 852 | TEMP_FAILURE_RETRY(execve(path.c_str(), argv.get(), envp.get())); |
Nick Kralevich | 798f855 | 2013-02-05 13:02:13 -0800 | [diff] [blame] | 853 | |
Nick Kralevich | 798f855 | 2013-02-05 13:02:13 -0800 | [diff] [blame] | 854 | throwErrnoException(env, "execve"); |
| 855 | } |
| 856 | |
| 857 | static void Posix_execv(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv) { |
| 858 | ScopedUtfChars path(env, javaFilename); |
| 859 | if (path.c_str() == NULL) { |
| 860 | return; |
| 861 | } |
| 862 | |
Elliott Hughes | ad9208a | 2013-02-05 18:01:08 -0800 | [diff] [blame] | 863 | ExecStrings argv(env, javaArgv); |
Elliott Hughes | fa54209 | 2014-12-15 16:14:56 -0800 | [diff] [blame] | 864 | TEMP_FAILURE_RETRY(execv(path.c_str(), argv.get())); |
Nick Kralevich | 798f855 | 2013-02-05 13:02:13 -0800 | [diff] [blame] | 865 | |
Nick Kralevich | 798f855 | 2013-02-05 13:02:13 -0800 | [diff] [blame] | 866 | throwErrnoException(env, "execv"); |
| 867 | } |
| 868 | |
Elliott Hughes | 44f7875 | 2012-08-16 12:29:52 -0700 | [diff] [blame] | 869 | static void Posix_fchmod(JNIEnv* env, jobject, jobject javaFd, jint mode) { |
| 870 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 871 | throwIfMinusOne(env, "fchmod", TEMP_FAILURE_RETRY(fchmod(fd, mode))); |
| 872 | } |
| 873 | |
| 874 | static void Posix_fchown(JNIEnv* env, jobject, jobject javaFd, jint uid, jint gid) { |
| 875 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 876 | throwIfMinusOne(env, "fchown", TEMP_FAILURE_RETRY(fchown(fd, uid, gid))); |
| 877 | } |
| 878 | |
Elliott Hughes | fc549a0 | 2011-03-24 16:38:05 -0700 | [diff] [blame] | 879 | static jint Posix_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { |
| 880 | static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); |
| 881 | static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); |
| 882 | static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); |
| 883 | static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); |
| 884 | static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); |
| 885 | |
| 886 | struct flock64 lock; |
| 887 | memset(&lock, 0, sizeof(lock)); |
| 888 | lock.l_type = env->GetShortField(javaFlock, typeFid); |
| 889 | lock.l_whence = env->GetShortField(javaFlock, whenceFid); |
| 890 | lock.l_start = env->GetLongField(javaFlock, startFid); |
| 891 | lock.l_len = env->GetLongField(javaFlock, lenFid); |
| 892 | lock.l_pid = env->GetIntField(javaFlock, pidFid); |
| 893 | |
Neil Fuller | 8add322 | 2014-04-17 13:22:20 +0100 | [diff] [blame] | 894 | int rc = IO_FAILURE_RETRY(env, int, fcntl, javaFd, cmd, &lock); |
Elliott Hughes | fc549a0 | 2011-03-24 16:38:05 -0700 | [diff] [blame] | 895 | if (rc != -1) { |
| 896 | env->SetShortField(javaFlock, typeFid, lock.l_type); |
| 897 | env->SetShortField(javaFlock, whenceFid, lock.l_whence); |
| 898 | env->SetLongField(javaFlock, startFid, lock.l_start); |
| 899 | env->SetLongField(javaFlock, lenFid, lock.l_len); |
| 900 | env->SetIntField(javaFlock, pidFid, lock.l_pid); |
| 901 | } |
| 902 | return rc; |
| 903 | } |
| 904 | |
Narayan Kamath | c8d9ea6 | 2015-01-16 17:51:59 +0000 | [diff] [blame] | 905 | static jint Posix_fcntlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jint arg) { |
| 906 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 907 | return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); |
| 908 | } |
| 909 | |
Narayan Kamath | c8d9ea6 | 2015-01-16 17:51:59 +0000 | [diff] [blame] | 910 | static jint Posix_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { |
| 911 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 912 | return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); |
| 913 | } |
| 914 | |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 915 | static void Posix_fdatasync(JNIEnv* env, jobject, jobject javaFd) { |
| 916 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 917 | throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 918 | } |
| 919 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 920 | static jobject Posix_fstat(JNIEnv* env, jobject, jobject javaFd) { |
| 921 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 922 | struct stat sb; |
| 923 | int rc = TEMP_FAILURE_RETRY(fstat(fd, &sb)); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 924 | if (rc == -1) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 925 | throwErrnoException(env, "fstat"); |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 926 | return NULL; |
| 927 | } |
| 928 | return makeStructStat(env, sb); |
| 929 | } |
| 930 | |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 931 | static jobject Posix_fstatvfs(JNIEnv* env, jobject, jobject javaFd) { |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 932 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 933 | struct statvfs sb; |
| 934 | int rc = TEMP_FAILURE_RETRY(fstatvfs(fd, &sb)); |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 935 | if (rc == -1) { |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 936 | throwErrnoException(env, "fstatvfs"); |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 937 | return NULL; |
| 938 | } |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 939 | return makeStructStatVfs(env, sb); |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 940 | } |
| 941 | |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 942 | static void Posix_fsync(JNIEnv* env, jobject, jobject javaFd) { |
| 943 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 944 | throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); |
Elliott Hughes | f5333fd | 2011-03-18 14:13:08 -0700 | [diff] [blame] | 945 | } |
| 946 | |
| 947 | static void Posix_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { |
| 948 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 949 | throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 950 | } |
| 951 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 952 | static jstring Posix_gai_strerror(JNIEnv* env, jobject, jint error) { |
| 953 | return env->NewStringUTF(gai_strerror(error)); |
| 954 | } |
| 955 | |
Paul Jensen | 3e58734 | 2014-05-12 23:40:42 -0400 | [diff] [blame] | 956 | static jobjectArray Posix_android_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, |
| 957 | jobject javaHints, jint netId) { |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 958 | ScopedUtfChars node(env, javaNode); |
| 959 | if (node.c_str() == NULL) { |
| 960 | return NULL; |
| 961 | } |
| 962 | |
| 963 | static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); |
| 964 | static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); |
| 965 | static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); |
| 966 | static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); |
| 967 | |
| 968 | addrinfo hints; |
| 969 | memset(&hints, 0, sizeof(hints)); |
| 970 | hints.ai_flags = env->GetIntField(javaHints, flagsFid); |
| 971 | hints.ai_family = env->GetIntField(javaHints, familyFid); |
| 972 | hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); |
| 973 | hints.ai_protocol = env->GetIntField(javaHints, protocolFid); |
| 974 | |
| 975 | addrinfo* addressList = NULL; |
Elliott Hughes | 75cf149 | 2012-02-15 17:05:50 -0800 | [diff] [blame] | 976 | errno = 0; |
Paul Jensen | 3e58734 | 2014-05-12 23:40:42 -0400 | [diff] [blame] | 977 | int rc = android_getaddrinfofornet(node.c_str(), NULL, &hints, netId, 0, &addressList); |
Ian Rogers | b3aacde | 2014-11-04 15:21:13 -0800 | [diff] [blame] | 978 | std::unique_ptr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 979 | if (rc != 0) { |
Paul Jensen | 3e58734 | 2014-05-12 23:40:42 -0400 | [diff] [blame] | 980 | throwGaiException(env, "android_getaddrinfo", rc); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 981 | return NULL; |
| 982 | } |
| 983 | |
| 984 | // Count results so we know how to size the output array. |
| 985 | int addressCount = 0; |
| 986 | for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { |
| 987 | if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { |
| 988 | ++addressCount; |
| 989 | } else { |
Paul Jensen | 3e58734 | 2014-05-12 23:40:42 -0400 | [diff] [blame] | 990 | ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 991 | } |
| 992 | } |
| 993 | if (addressCount == 0) { |
| 994 | return NULL; |
| 995 | } |
| 996 | |
| 997 | // Prepare output array. |
| 998 | jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); |
| 999 | if (result == NULL) { |
| 1000 | return NULL; |
| 1001 | } |
| 1002 | |
| 1003 | // Examine returned addresses one by one, save them in the output array. |
| 1004 | int index = 0; |
| 1005 | for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { |
| 1006 | if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { |
| 1007 | // Unknown address family. Skip this address. |
Paul Jensen | 3e58734 | 2014-05-12 23:40:42 -0400 | [diff] [blame] | 1008 | ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 1009 | continue; |
| 1010 | } |
| 1011 | |
| 1012 | // Convert each IP address into a Java byte array. |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1013 | sockaddr_storage& address = *reinterpret_cast<sockaddr_storage*>(ai->ai_addr); |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 1014 | ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL)); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 1015 | if (inetAddress.get() == NULL) { |
| 1016 | return NULL; |
| 1017 | } |
| 1018 | env->SetObjectArrayElement(result, index, inetAddress.get()); |
| 1019 | ++index; |
| 1020 | } |
| 1021 | return result; |
| 1022 | } |
| 1023 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1024 | static jint Posix_getegid(JNIEnv*, jobject) { |
Elliott Hughes | 5643128 | 2014-12-17 11:04:05 -0800 | [diff] [blame] | 1025 | return getegid(); |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1026 | } |
| 1027 | |
| 1028 | static jint Posix_geteuid(JNIEnv*, jobject) { |
Elliott Hughes | 5643128 | 2014-12-17 11:04:05 -0800 | [diff] [blame] | 1029 | return geteuid(); |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1030 | } |
| 1031 | |
| 1032 | static jint Posix_getgid(JNIEnv*, jobject) { |
Elliott Hughes | 5643128 | 2014-12-17 11:04:05 -0800 | [diff] [blame] | 1033 | return getgid(); |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1034 | } |
| 1035 | |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 1036 | static jstring Posix_getenv(JNIEnv* env, jobject, jstring javaName) { |
| 1037 | ScopedUtfChars name(env, javaName); |
| 1038 | if (name.c_str() == NULL) { |
| 1039 | return NULL; |
| 1040 | } |
| 1041 | return env->NewStringUTF(getenv(name.c_str())); |
| 1042 | } |
| 1043 | |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 1044 | static jstring Posix_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { |
| 1045 | sockaddr_storage ss; |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1046 | socklen_t sa_len; |
| 1047 | if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, ss, sa_len)) { |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 1048 | return NULL; |
| 1049 | } |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 1050 | char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. |
Elliott Hughes | 75cf149 | 2012-02-15 17:05:50 -0800 | [diff] [blame] | 1051 | errno = 0; |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1052 | int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), sa_len, buf, sizeof(buf), NULL, 0, flags); |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 1053 | if (rc != 0) { |
| 1054 | throwGaiException(env, "getnameinfo", rc); |
| 1055 | return NULL; |
| 1056 | } |
| 1057 | return env->NewStringUTF(buf); |
| 1058 | } |
| 1059 | |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1060 | static jobject Posix_getpeername(JNIEnv* env, jobject, jobject javaFd) { |
| 1061 | return doGetSockName(env, javaFd, false); |
| 1062 | } |
| 1063 | |
Elliott Hughes | 8f0f2ac | 2014-12-17 11:59:00 -0800 | [diff] [blame] | 1064 | static jint Posix_getpgid(JNIEnv* env, jobject, jint pid) { |
| 1065 | return throwIfMinusOne(env, "getpgid", TEMP_FAILURE_RETRY(getpgid(pid))); |
| 1066 | } |
| 1067 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1068 | static jint Posix_getpid(JNIEnv*, jobject) { |
Elliott Hughes | fa54209 | 2014-12-15 16:14:56 -0800 | [diff] [blame] | 1069 | return TEMP_FAILURE_RETRY(getpid()); |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1070 | } |
| 1071 | |
| 1072 | static jint Posix_getppid(JNIEnv*, jobject) { |
Elliott Hughes | fa54209 | 2014-12-15 16:14:56 -0800 | [diff] [blame] | 1073 | return TEMP_FAILURE_RETRY(getppid()); |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1074 | } |
| 1075 | |
Elliott Hughes | d4419fc | 2011-05-12 17:22:07 -0700 | [diff] [blame] | 1076 | static jobject Posix_getpwnam(JNIEnv* env, jobject, jstring javaName) { |
| 1077 | ScopedUtfChars name(env, javaName); |
| 1078 | if (name.c_str() == NULL) { |
| 1079 | return NULL; |
| 1080 | } |
| 1081 | return Passwd(env).getpwnam(name.c_str()); |
| 1082 | } |
| 1083 | |
| 1084 | static jobject Posix_getpwuid(JNIEnv* env, jobject, jint uid) { |
| 1085 | return Passwd(env).getpwuid(uid); |
| 1086 | } |
| 1087 | |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 1088 | static jobject Posix_getsockname(JNIEnv* env, jobject, jobject javaFd) { |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1089 | return doGetSockName(env, javaFd, true); |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 1090 | } |
| 1091 | |
| 1092 | static jint Posix_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 1093 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1094 | u_char result = 0; |
| 1095 | socklen_t size = sizeof(result); |
| 1096 | throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); |
| 1097 | return result; |
| 1098 | } |
| 1099 | |
| 1100 | static jobject Posix_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 1101 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1102 | sockaddr_storage ss; |
| 1103 | memset(&ss, 0, sizeof(ss)); |
| 1104 | ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. |
| 1105 | sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); |
| 1106 | socklen_t size = sizeof(sa->sin_addr); |
| 1107 | int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); |
| 1108 | if (rc == -1) { |
| 1109 | throwErrnoException(env, "getsockopt"); |
| 1110 | return NULL; |
| 1111 | } |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1112 | return sockaddrToInetAddress(env, ss, NULL); |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 1113 | } |
| 1114 | |
| 1115 | static jint Posix_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 1116 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1117 | jint result = 0; |
| 1118 | socklen_t size = sizeof(result); |
| 1119 | throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); |
| 1120 | return result; |
| 1121 | } |
| 1122 | |
| 1123 | static jobject Posix_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 1124 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1125 | struct linger l; |
| 1126 | socklen_t size = sizeof(l); |
| 1127 | memset(&l, 0, size); |
| 1128 | int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); |
| 1129 | if (rc == -1) { |
| 1130 | throwErrnoException(env, "getsockopt"); |
| 1131 | return NULL; |
| 1132 | } |
| 1133 | return makeStructLinger(env, l); |
| 1134 | } |
| 1135 | |
| 1136 | static jobject Posix_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 1137 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1138 | struct timeval tv; |
| 1139 | socklen_t size = sizeof(tv); |
| 1140 | memset(&tv, 0, size); |
| 1141 | int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); |
| 1142 | if (rc == -1) { |
| 1143 | throwErrnoException(env, "getsockopt"); |
| 1144 | return NULL; |
| 1145 | } |
| 1146 | return makeStructTimeval(env, tv); |
| 1147 | } |
| 1148 | |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1149 | static jobject Posix_getsockoptUcred(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { |
| 1150 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1151 | struct ucred u; |
| 1152 | socklen_t size = sizeof(u); |
| 1153 | memset(&u, 0, size); |
| 1154 | int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &u, &size)); |
| 1155 | if (rc == -1) { |
| 1156 | throwErrnoException(env, "getsockopt"); |
| 1157 | return NULL; |
| 1158 | } |
| 1159 | return makeStructUcred(env, u); |
| 1160 | } |
| 1161 | |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 1162 | static jint Posix_gettid(JNIEnv* env __unused, jobject) { |
| 1163 | #if defined(__APPLE__) |
| 1164 | uint64_t owner; |
| 1165 | int rc = pthread_threadid_np(NULL, &owner); // Requires Mac OS 10.6 |
| 1166 | if (rc != 0) { |
| 1167 | throwErrnoException(env, "gettid"); |
Ian Rogers | fec498e | 2014-06-24 23:08:00 -0700 | [diff] [blame] | 1168 | return 0; |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 1169 | } |
| 1170 | return static_cast<jint>(owner); |
Elliott Hughes | 11592af | 2014-08-20 13:19:52 -0700 | [diff] [blame] | 1171 | #elif defined(__BIONIC__) |
Elliott Hughes | fa54209 | 2014-12-15 16:14:56 -0800 | [diff] [blame] | 1172 | return TEMP_FAILURE_RETRY(gettid()); |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 1173 | #else |
Elliott Hughes | 069525a | 2013-07-30 11:47:25 -0700 | [diff] [blame] | 1174 | return syscall(__NR_gettid); |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 1175 | #endif |
Elliott Hughes | 069525a | 2013-07-30 11:47:25 -0700 | [diff] [blame] | 1176 | } |
| 1177 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1178 | static jint Posix_getuid(JNIEnv*, jobject) { |
Elliott Hughes | 5643128 | 2014-12-17 11:04:05 -0800 | [diff] [blame] | 1179 | return getuid(); |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1180 | } |
| 1181 | |
Jeff Sharkey | 90246a0 | 2015-07-02 12:04:00 -0700 | [diff] [blame] | 1182 | static jint Posix_getxattr(JNIEnv* env, jobject, jstring javaPath, |
| 1183 | jstring javaName, jbyteArray javaOutValue) { |
| 1184 | ScopedUtfChars path(env, javaPath); |
| 1185 | if (path.c_str() == NULL) { |
| 1186 | return -1; |
| 1187 | } |
| 1188 | ScopedUtfChars name(env, javaName); |
| 1189 | if (name.c_str() == NULL) { |
| 1190 | return -1; |
| 1191 | } |
| 1192 | ScopedBytesRW outValue(env, javaOutValue); |
| 1193 | if (outValue.get() == NULL) { |
| 1194 | return -1; |
| 1195 | } |
| 1196 | size_t outValueLength = env->GetArrayLength(javaOutValue); |
| 1197 | ssize_t size = getxattr(path.c_str(), name.c_str(), outValue.get(), outValueLength); |
| 1198 | if (size < 0) { |
| 1199 | throwErrnoException(env, "getxattr"); |
| 1200 | } |
| 1201 | return size; |
| 1202 | } |
| 1203 | |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 1204 | static jstring Posix_if_indextoname(JNIEnv* env, jobject, jint index) { |
| 1205 | char buf[IF_NAMESIZE]; |
| 1206 | char* name = if_indextoname(index, buf); |
| 1207 | // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. |
| 1208 | // There's no useful information in errno, so we don't bother throwing. Callers can null-check. |
| 1209 | return env->NewStringUTF(name); |
| 1210 | } |
| 1211 | |
Elliott Hughes | fc041ff | 2011-06-03 12:43:17 -0700 | [diff] [blame] | 1212 | static jobject Posix_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) { |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 1213 | ScopedUtfChars name(env, javaName); |
| 1214 | if (name.c_str() == NULL) { |
| 1215 | return NULL; |
| 1216 | } |
| 1217 | sockaddr_storage ss; |
| 1218 | memset(&ss, 0, sizeof(ss)); |
Elliott Hughes | fc041ff | 2011-06-03 12:43:17 -0700 | [diff] [blame] | 1219 | // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here. |
| 1220 | void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr; |
| 1221 | if (inet_pton(family, name.c_str(), dst) != 1) { |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 1222 | return NULL; |
| 1223 | } |
Elliott Hughes | fc041ff | 2011-06-03 12:43:17 -0700 | [diff] [blame] | 1224 | ss.ss_family = family; |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1225 | return sockaddrToInetAddress(env, ss, NULL); |
Elliott Hughes | 1c039d7 | 2011-05-04 16:04:04 -0700 | [diff] [blame] | 1226 | } |
| 1227 | |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 1228 | static jobject Posix_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { |
| 1229 | struct ifreq req; |
| 1230 | if (!fillIfreq(env, javaInterfaceName, req)) { |
| 1231 | return NULL; |
| 1232 | } |
| 1233 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1234 | int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); |
| 1235 | if (rc == -1) { |
| 1236 | return NULL; |
| 1237 | } |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1238 | return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage&>(req.ifr_addr), NULL); |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 1239 | } |
| 1240 | |
Elliott Hughes | 8b15dcc | 2011-03-29 14:26:04 -0700 | [diff] [blame] | 1241 | static jint Posix_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { |
| 1242 | // This is complicated because ioctls may return their result by updating their argument |
| 1243 | // or via their return value, so we need to support both. |
Elliott Hughes | 461d0d8 | 2011-03-28 15:12:20 -0700 | [diff] [blame] | 1244 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 8b15dcc | 2011-03-29 14:26:04 -0700 | [diff] [blame] | 1245 | static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); |
| 1246 | jint arg = env->GetIntField(javaArg, valueFid); |
| 1247 | int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); |
| 1248 | if (!env->ExceptionCheck()) { |
| 1249 | env->SetIntField(javaArg, valueFid, arg); |
| 1250 | } |
| 1251 | return rc; |
Elliott Hughes | 461d0d8 | 2011-03-28 15:12:20 -0700 | [diff] [blame] | 1252 | } |
| 1253 | |
Elliott Hughes | 9a3f363 | 2011-03-18 16:30:53 -0700 | [diff] [blame] | 1254 | static jboolean Posix_isatty(JNIEnv* env, jobject, jobject javaFd) { |
| 1255 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Johan Redestig | bb5816a | 2012-01-10 17:48:01 +0900 | [diff] [blame] | 1256 | return TEMP_FAILURE_RETRY(isatty(fd)) == 1; |
Elliott Hughes | 9a3f363 | 2011-03-18 16:30:53 -0700 | [diff] [blame] | 1257 | } |
| 1258 | |
Elliott Hughes | a5fb706 | 2011-04-28 15:36:47 -0700 | [diff] [blame] | 1259 | static void Posix_kill(JNIEnv* env, jobject, jint pid, jint sig) { |
| 1260 | throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); |
| 1261 | } |
| 1262 | |
Elliott Hughes | 44f7875 | 2012-08-16 12:29:52 -0700 | [diff] [blame] | 1263 | static void Posix_lchown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { |
| 1264 | ScopedUtfChars path(env, javaPath); |
| 1265 | if (path.c_str() == NULL) { |
| 1266 | return; |
| 1267 | } |
| 1268 | throwIfMinusOne(env, "lchown", TEMP_FAILURE_RETRY(lchown(path.c_str(), uid, gid))); |
| 1269 | } |
| 1270 | |
Elliott Hughes | 04428d6 | 2014-05-09 17:42:11 -0700 | [diff] [blame] | 1271 | static void Posix_link(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { |
| 1272 | ScopedUtfChars oldPath(env, javaOldPath); |
| 1273 | if (oldPath.c_str() == NULL) { |
| 1274 | return; |
| 1275 | } |
| 1276 | ScopedUtfChars newPath(env, javaNewPath); |
| 1277 | if (newPath.c_str() == NULL) { |
| 1278 | return; |
| 1279 | } |
| 1280 | throwIfMinusOne(env, "link", TEMP_FAILURE_RETRY(link(oldPath.c_str(), newPath.c_str()))); |
| 1281 | } |
| 1282 | |
Elliott Hughes | e1502d6 | 2011-03-24 11:57:08 -0700 | [diff] [blame] | 1283 | static void Posix_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { |
| 1284 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1285 | throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); |
| 1286 | } |
| 1287 | |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 1288 | static jlong Posix_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { |
| 1289 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 1290 | return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 1291 | } |
| 1292 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 1293 | static jobject Posix_lstat(JNIEnv* env, jobject, jstring javaPath) { |
| 1294 | return doStat(env, javaPath, true); |
| 1295 | } |
| 1296 | |
Elliott Hughes | 0f746ff5 | 2011-03-22 16:10:21 -0700 | [diff] [blame] | 1297 | static void Posix_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { |
| 1298 | ScopedByteArrayRW vector(env, javaVector); |
| 1299 | if (vector.get() == NULL) { |
| 1300 | return; |
| 1301 | } |
| 1302 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 1303 | unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); |
| 1304 | throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); |
| 1305 | } |
| 1306 | |
Elliott Hughes | c7fa207 | 2011-03-23 17:37:58 -0700 | [diff] [blame] | 1307 | static void Posix_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { |
| 1308 | ScopedUtfChars path(env, javaPath); |
| 1309 | if (path.c_str() == NULL) { |
| 1310 | return; |
| 1311 | } |
| 1312 | throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); |
| 1313 | } |
| 1314 | |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 1315 | static void Posix_mkfifo(JNIEnv* env, jobject, jstring javaPath, jint mode) { |
| 1316 | ScopedUtfChars path(env, javaPath); |
| 1317 | if (path.c_str() == NULL) { |
| 1318 | return; |
| 1319 | } |
| 1320 | throwIfMinusOne(env, "mkfifo", TEMP_FAILURE_RETRY(mkfifo(path.c_str(), mode))); |
| 1321 | } |
| 1322 | |
Elliott Hughes | 7e13c0f | 2011-03-18 18:52:08 -0700 | [diff] [blame] | 1323 | static void Posix_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { |
| 1324 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 1325 | throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); |
| 1326 | } |
| 1327 | |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 1328 | static jlong Posix_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { |
| 1329 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1330 | void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 1331 | void* ptr = mmap(suggestedPtr, byteCount, prot, flags, fd, offset); |
| 1332 | if (ptr == MAP_FAILED) { |
| 1333 | throwErrnoException(env, "mmap"); |
| 1334 | } |
| 1335 | return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); |
| 1336 | } |
| 1337 | |
| 1338 | static void Posix_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { |
| 1339 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 1340 | throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); |
| 1341 | } |
| 1342 | |
Elliott Hughes | 7e13c0f | 2011-03-18 18:52:08 -0700 | [diff] [blame] | 1343 | static void Posix_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { |
| 1344 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 1345 | throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); |
| 1346 | } |
| 1347 | |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 1348 | static void Posix_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { |
| 1349 | void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); |
| 1350 | throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); |
| 1351 | } |
| 1352 | |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 1353 | static jobject Posix_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { |
| 1354 | ScopedUtfChars path(env, javaPath); |
| 1355 | if (path.c_str() == NULL) { |
| 1356 | return NULL; |
| 1357 | } |
| 1358 | int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); |
| 1359 | return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; |
| 1360 | } |
| 1361 | |
Elliott Hughes | 5e92aa6 | 2014-12-12 21:21:08 -0800 | [diff] [blame] | 1362 | static jobjectArray Posix_pipe2(JNIEnv* env, jobject, jint flags __unused) { |
Elliott Hughes | 62eda73 | 2014-12-12 15:30:29 -0800 | [diff] [blame] | 1363 | #ifdef __APPLE__ |
| 1364 | jniThrowException(env, "java/lang/UnsupportedOperationException", "no pipe2 on Mac OS"); |
Elliott Hughes | f2ea64c | 2014-12-12 22:38:39 -0800 | [diff] [blame] | 1365 | return NULL; |
Elliott Hughes | 62eda73 | 2014-12-12 15:30:29 -0800 | [diff] [blame] | 1366 | #else |
Elliott Hughes | 41f0605 | 2011-03-24 10:48:09 -0700 | [diff] [blame] | 1367 | int fds[2]; |
Elliott Hughes | 0d8b5c3 | 2014-12-12 12:46:38 -0800 | [diff] [blame] | 1368 | throwIfMinusOne(env, "pipe2", TEMP_FAILURE_RETRY(pipe2(&fds[0], flags))); |
Elliott Hughes | 41f0605 | 2011-03-24 10:48:09 -0700 | [diff] [blame] | 1369 | jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); |
| 1370 | if (result == NULL) { |
| 1371 | return NULL; |
| 1372 | } |
| 1373 | for (int i = 0; i < 2; ++i) { |
| 1374 | ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); |
| 1375 | if (fd.get() == NULL) { |
| 1376 | return NULL; |
| 1377 | } |
| 1378 | env->SetObjectArrayElement(result, i, fd.get()); |
| 1379 | if (env->ExceptionCheck()) { |
| 1380 | return NULL; |
| 1381 | } |
| 1382 | } |
| 1383 | return result; |
Elliott Hughes | 62eda73 | 2014-12-12 15:30:29 -0800 | [diff] [blame] | 1384 | #endif |
Elliott Hughes | 41f0605 | 2011-03-24 10:48:09 -0700 | [diff] [blame] | 1385 | } |
| 1386 | |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 1387 | static jint Posix_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { |
| 1388 | static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); |
| 1389 | static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); |
| 1390 | static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); |
| 1391 | |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 1392 | // Turn the Java android.system.StructPollfd[] into a C++ struct pollfd[]. |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 1393 | size_t arrayLength = env->GetArrayLength(javaStructs); |
Ian Rogers | b3aacde | 2014-11-04 15:21:13 -0800 | [diff] [blame] | 1394 | std::unique_ptr<struct pollfd[]> fds(new struct pollfd[arrayLength]); |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 1395 | memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); |
| 1396 | size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) |
| 1397 | for (size_t i = 0; i < arrayLength; ++i) { |
| 1398 | ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); |
| 1399 | if (javaStruct.get() == NULL) { |
| 1400 | break; // We allow trailing nulls in the array for caller convenience. |
| 1401 | } |
| 1402 | ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); |
| 1403 | if (javaFd.get() == NULL) { |
| 1404 | break; // We also allow callers to just clear the fd field (this is what Selector does). |
| 1405 | } |
| 1406 | fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); |
| 1407 | fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); |
| 1408 | ++count; |
| 1409 | } |
| 1410 | |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 1411 | std::vector<AsynchronousCloseMonitor*> monitors; |
Elliott Hughes | 796f0d5 | 2012-02-16 14:35:26 -0800 | [diff] [blame] | 1412 | for (size_t i = 0; i < count; ++i) { |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 1413 | monitors.push_back(new AsynchronousCloseMonitor(fds[i].fd)); |
Elliott Hughes | 796f0d5 | 2012-02-16 14:35:26 -0800 | [diff] [blame] | 1414 | } |
Elliott Hughes | fa54209 | 2014-12-15 16:14:56 -0800 | [diff] [blame] | 1415 | |
| 1416 | int rc; |
| 1417 | while (true) { |
| 1418 | timespec before; |
| 1419 | clock_gettime(CLOCK_MONOTONIC, &before); |
| 1420 | |
| 1421 | rc = poll(fds.get(), count, timeoutMs); |
| 1422 | if (rc >= 0 || errno != EINTR) { |
| 1423 | break; |
| 1424 | } |
| 1425 | |
| 1426 | // We got EINTR. Work out how much of the original timeout is still left. |
| 1427 | if (timeoutMs > 0) { |
| 1428 | timespec now; |
| 1429 | clock_gettime(CLOCK_MONOTONIC, &now); |
| 1430 | |
| 1431 | timespec diff; |
| 1432 | diff.tv_sec = now.tv_sec - before.tv_sec; |
| 1433 | diff.tv_nsec = now.tv_nsec - before.tv_nsec; |
| 1434 | if (diff.tv_nsec < 0) { |
| 1435 | --diff.tv_sec; |
| 1436 | diff.tv_nsec += 1000000000; |
| 1437 | } |
| 1438 | |
| 1439 | jint diffMs = diff.tv_sec * 1000 + diff.tv_nsec / 1000000; |
| 1440 | if (diffMs >= timeoutMs) { |
| 1441 | rc = 0; // We have less than 1ms left anyway, so just time out. |
| 1442 | break; |
| 1443 | } |
| 1444 | |
| 1445 | timeoutMs -= diffMs; |
| 1446 | } |
| 1447 | } |
| 1448 | |
Elliott Hughes | 796f0d5 | 2012-02-16 14:35:26 -0800 | [diff] [blame] | 1449 | for (size_t i = 0; i < monitors.size(); ++i) { |
| 1450 | delete monitors[i]; |
| 1451 | } |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 1452 | if (rc == -1) { |
| 1453 | throwErrnoException(env, "poll"); |
| 1454 | return -1; |
| 1455 | } |
| 1456 | |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 1457 | // Update the revents fields in the Java android.system.StructPollfd[]. |
Elliott Hughes | 98b23d4 | 2011-05-12 12:19:13 -0700 | [diff] [blame] | 1458 | for (size_t i = 0; i < count; ++i) { |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 1459 | ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); |
Elliott Hughes | 98b23d4 | 2011-05-12 12:19:13 -0700 | [diff] [blame] | 1460 | if (javaStruct.get() == NULL) { |
| 1461 | return -1; |
| 1462 | } |
Elliott Hughes | 70c8204 | 2011-05-11 16:12:36 -0700 | [diff] [blame] | 1463 | env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); |
| 1464 | } |
| 1465 | return rc; |
| 1466 | } |
| 1467 | |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 1468 | static void Posix_posix_fallocate(JNIEnv* env, jobject, jobject javaFd __unused, |
| 1469 | jlong offset __unused, jlong length __unused) { |
| 1470 | #ifdef __APPLE__ |
| 1471 | jniThrowException(env, "java/lang/UnsupportedOperationException", |
| 1472 | "fallocate doesn't exist on a Mac"); |
| 1473 | #else |
Elliott Hughes | 11f07d3 | 2014-02-03 16:49:47 -0800 | [diff] [blame] | 1474 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | fa54209 | 2014-12-15 16:14:56 -0800 | [diff] [blame] | 1475 | while ((errno = posix_fallocate64(fd, offset, length)) == EINTR) { |
| 1476 | } |
Elliott Hughes | 11f07d3 | 2014-02-03 16:49:47 -0800 | [diff] [blame] | 1477 | if (errno != 0) { |
| 1478 | throwErrnoException(env, "posix_fallocate"); |
| 1479 | } |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 1480 | #endif |
Elliott Hughes | 11f07d3 | 2014-02-03 16:49:47 -0800 | [diff] [blame] | 1481 | } |
| 1482 | |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 1483 | static jint Posix_prctl(JNIEnv* env, jobject, jint option __unused, jlong arg2 __unused, |
| 1484 | jlong arg3 __unused, jlong arg4 __unused, jlong arg5 __unused) { |
| 1485 | #ifdef __APPLE__ |
| 1486 | jniThrowException(env, "java/lang/UnsupportedOperationException", "prctl doesn't exist on a Mac"); |
| 1487 | return 0; |
| 1488 | #else |
Elliott Hughes | fa54209 | 2014-12-15 16:14:56 -0800 | [diff] [blame] | 1489 | int result = TEMP_FAILURE_RETRY(prctl(static_cast<int>(option), |
| 1490 | static_cast<unsigned long>(arg2), |
| 1491 | static_cast<unsigned long>(arg3), |
| 1492 | static_cast<unsigned long>(arg4), |
| 1493 | static_cast<unsigned long>(arg5))); |
Nick Kralevich | 5215e4c | 2014-04-25 14:59:37 -0700 | [diff] [blame] | 1494 | return throwIfMinusOne(env, "prctl", result); |
Ian Rogers | 3deabd2 | 2014-05-23 15:12:42 -0700 | [diff] [blame] | 1495 | #endif |
Nick Kralevich | 5215e4c | 2014-04-25 14:59:37 -0700 | [diff] [blame] | 1496 | } |
| 1497 | |
Elliott Hughes | e3b6fa2 | 2011-06-09 15:30:18 -0700 | [diff] [blame] | 1498 | static jint Posix_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) { |
| 1499 | ScopedBytesRW bytes(env, javaBytes); |
| 1500 | if (bytes.get() == NULL) { |
| 1501 | return -1; |
| 1502 | } |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 1503 | return IO_FAILURE_RETRY(env, ssize_t, pread64, javaFd, bytes.get() + byteOffset, byteCount, offset); |
Elliott Hughes | e3b6fa2 | 2011-06-09 15:30:18 -0700 | [diff] [blame] | 1504 | } |
| 1505 | |
| 1506 | static jint Posix_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) { |
| 1507 | ScopedBytesRO bytes(env, javaBytes); |
| 1508 | if (bytes.get() == NULL) { |
| 1509 | return -1; |
| 1510 | } |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 1511 | return IO_FAILURE_RETRY(env, ssize_t, pwrite64, javaFd, bytes.get() + byteOffset, byteCount, offset); |
Elliott Hughes | e3b6fa2 | 2011-06-09 15:30:18 -0700 | [diff] [blame] | 1512 | } |
| 1513 | |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 1514 | static jint Posix_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { |
| 1515 | ScopedBytesRW bytes(env, javaBytes); |
Elliott Hughes | 26c7025 | 2011-03-25 17:07:28 -0700 | [diff] [blame] | 1516 | if (bytes.get() == NULL) { |
| 1517 | return -1; |
| 1518 | } |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 1519 | return IO_FAILURE_RETRY(env, ssize_t, read, javaFd, bytes.get() + byteOffset, byteCount); |
Elliott Hughes | 26c7025 | 2011-03-25 17:07:28 -0700 | [diff] [blame] | 1520 | } |
| 1521 | |
Elliott Hughes | 0b6b3e1 | 2014-01-31 15:29:15 -0800 | [diff] [blame] | 1522 | static jstring Posix_readlink(JNIEnv* env, jobject, jstring javaPath) { |
| 1523 | ScopedUtfChars path(env, javaPath); |
| 1524 | if (path.c_str() == NULL) { |
| 1525 | return NULL; |
| 1526 | } |
| 1527 | |
| 1528 | std::string result; |
| 1529 | if (!readlink(path.c_str(), result)) { |
| 1530 | throwErrnoException(env, "readlink"); |
| 1531 | return NULL; |
| 1532 | } |
| 1533 | return env->NewStringUTF(result.c_str()); |
| 1534 | } |
| 1535 | |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1536 | static jint Posix_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 1537 | IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1538 | if (!ioVec.init(buffers, offsets, byteCounts)) { |
| 1539 | return -1; |
| 1540 | } |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 1541 | return IO_FAILURE_RETRY(env, ssize_t, readv, javaFd, ioVec.get(), ioVec.size()); |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1542 | } |
| 1543 | |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 1544 | static jint Posix_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) { |
| 1545 | ScopedBytesRW bytes(env, javaBytes); |
| 1546 | if (bytes.get() == NULL) { |
| 1547 | return -1; |
| 1548 | } |
| 1549 | sockaddr_storage ss; |
| 1550 | socklen_t sl = sizeof(ss); |
| 1551 | memset(&ss, 0, sizeof(ss)); |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 1552 | sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; |
| 1553 | socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0; |
Elliott Hughes | 1124a81 | 2012-08-28 17:57:02 -0700 | [diff] [blame] | 1554 | jint recvCount = NET_FAILURE_RETRY(env, ssize_t, recvfrom, javaFd, bytes.get() + byteOffset, byteCount, flags, from, fromLength); |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 1555 | if (recvCount == -1) { |
| 1556 | return recvCount; |
| 1557 | } |
| 1558 | fillInetSocketAddress(env, javaInetSocketAddress, ss); |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 1559 | return recvCount; |
| 1560 | } |
| 1561 | |
Elliott Hughes | c7fa207 | 2011-03-23 17:37:58 -0700 | [diff] [blame] | 1562 | static void Posix_remove(JNIEnv* env, jobject, jstring javaPath) { |
| 1563 | ScopedUtfChars path(env, javaPath); |
| 1564 | if (path.c_str() == NULL) { |
| 1565 | return; |
| 1566 | } |
| 1567 | throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); |
| 1568 | } |
| 1569 | |
Jeff Sharkey | 90246a0 | 2015-07-02 12:04:00 -0700 | [diff] [blame] | 1570 | static void Posix_removexattr(JNIEnv* env, jobject, jstring javaPath, jstring javaName) { |
| 1571 | ScopedUtfChars path(env, javaPath); |
| 1572 | if (path.c_str() == NULL) { |
| 1573 | return; |
| 1574 | } |
| 1575 | ScopedUtfChars name(env, javaName); |
| 1576 | if (name.c_str() == NULL) { |
| 1577 | return; |
| 1578 | } |
| 1579 | |
| 1580 | int res = removexattr(path.c_str(), name.c_str()); |
| 1581 | if (res < 0) { |
| 1582 | throwErrnoException(env, "removexattr"); |
| 1583 | } |
| 1584 | } |
| 1585 | |
Elliott Hughes | a20cc6f | 2011-03-23 13:49:03 -0700 | [diff] [blame] | 1586 | static void Posix_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { |
| 1587 | ScopedUtfChars oldPath(env, javaOldPath); |
| 1588 | if (oldPath.c_str() == NULL) { |
| 1589 | return; |
| 1590 | } |
| 1591 | ScopedUtfChars newPath(env, javaNewPath); |
| 1592 | if (newPath.c_str() == NULL) { |
| 1593 | return; |
| 1594 | } |
| 1595 | throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); |
| 1596 | } |
| 1597 | |
Elliott Hughes | 8b15dcc | 2011-03-29 14:26:04 -0700 | [diff] [blame] | 1598 | static jlong Posix_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { |
| 1599 | int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); |
| 1600 | int inFd = jniGetFDFromFileDescriptor(env, javaInFd); |
| 1601 | static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); |
| 1602 | off_t offset = 0; |
| 1603 | off_t* offsetPtr = NULL; |
| 1604 | if (javaOffset != NULL) { |
| 1605 | // TODO: fix bionic so we can have a 64-bit off_t! |
| 1606 | offset = env->GetLongField(javaOffset, valueFid); |
| 1607 | offsetPtr = &offset; |
| 1608 | } |
| 1609 | jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); |
| 1610 | if (javaOffset != NULL) { |
| 1611 | env->SetLongField(javaOffset, valueFid, offset); |
| 1612 | } |
| 1613 | return result; |
| 1614 | } |
| 1615 | |
Elliott Hughes | 90d96a4 | 2011-05-16 16:43:48 -0700 | [diff] [blame] | 1616 | static jint Posix_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) { |
| 1617 | ScopedBytesRO bytes(env, javaBytes); |
| 1618 | if (bytes.get() == NULL) { |
| 1619 | return -1; |
| 1620 | } |
Lorenzo Colitti | b2a9923 | 2015-01-17 00:24:27 +0900 | [diff] [blame] | 1621 | |
| 1622 | return NET_IPV4_FALLBACK(env, ssize_t, sendto, javaFd, javaInetAddress, port, |
| 1623 | NULL_ADDR_OK, bytes.get() + byteOffset, byteCount, flags); |
Elliott Hughes | 90d96a4 | 2011-05-16 16:43:48 -0700 | [diff] [blame] | 1624 | } |
| 1625 | |
Lorenzo Colitti | a8b7587 | 2015-03-12 01:23:28 +0900 | [diff] [blame] | 1626 | static jint Posix_sendtoBytesSocketAddress(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaSocketAddress) { |
Lorenzo Colitti | f5fc4ad | 2015-03-13 16:27:11 +0900 | [diff] [blame] | 1627 | if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { |
| 1628 | // Use the InetAddress version so we get the benefit of NET_IPV4_FALLBACK. |
| 1629 | jobject javaInetAddress; |
| 1630 | jint port; |
| 1631 | javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port); |
| 1632 | return Posix_sendtoBytes(env, NULL, javaFd, javaBytes, byteOffset, byteCount, flags, |
| 1633 | javaInetAddress, port); |
| 1634 | } |
| 1635 | |
Lorenzo Colitti | a8b7587 | 2015-03-12 01:23:28 +0900 | [diff] [blame] | 1636 | ScopedBytesRO bytes(env, javaBytes); |
| 1637 | if (bytes.get() == NULL) { |
| 1638 | return -1; |
| 1639 | } |
| 1640 | |
| 1641 | sockaddr_storage ss; |
| 1642 | socklen_t sa_len; |
| 1643 | if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { |
| 1644 | return -1; |
| 1645 | } |
| 1646 | |
| 1647 | const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); |
| 1648 | // We don't need the return value because we'll already have thrown. |
| 1649 | return NET_FAILURE_RETRY(env, ssize_t, sendto, javaFd, bytes.get() + byteOffset, byteCount, flags, sa, sa_len); |
| 1650 | } |
| 1651 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1652 | static void Posix_setegid(JNIEnv* env, jobject, jint egid) { |
| 1653 | throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); |
| 1654 | } |
| 1655 | |
Elliott Hughes | 895a613 | 2012-11-05 15:44:56 -0800 | [diff] [blame] | 1656 | static void Posix_setenv(JNIEnv* env, jobject, jstring javaName, jstring javaValue, jboolean overwrite) { |
| 1657 | ScopedUtfChars name(env, javaName); |
| 1658 | if (name.c_str() == NULL) { |
| 1659 | return; |
| 1660 | } |
| 1661 | ScopedUtfChars value(env, javaValue); |
| 1662 | if (value.c_str() == NULL) { |
| 1663 | return; |
| 1664 | } |
| 1665 | throwIfMinusOne(env, "setenv", setenv(name.c_str(), value.c_str(), overwrite)); |
| 1666 | } |
| 1667 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1668 | static void Posix_seteuid(JNIEnv* env, jobject, jint euid) { |
| 1669 | throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); |
| 1670 | } |
| 1671 | |
| 1672 | static void Posix_setgid(JNIEnv* env, jobject, jint gid) { |
| 1673 | throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); |
| 1674 | } |
| 1675 | |
Elliott Hughes | 8f0f2ac | 2014-12-17 11:59:00 -0800 | [diff] [blame] | 1676 | static void Posix_setpgid(JNIEnv* env, jobject, jint pid, int pgid) { |
| 1677 | throwIfMinusOne(env, "setpgid", TEMP_FAILURE_RETRY(setpgid(pid, pgid))); |
| 1678 | } |
| 1679 | |
| 1680 | static void Posix_setregid(JNIEnv* env, jobject, jint rgid, int egid) { |
| 1681 | throwIfMinusOne(env, "setregid", TEMP_FAILURE_RETRY(setregid(rgid, egid))); |
| 1682 | } |
| 1683 | |
| 1684 | static void Posix_setreuid(JNIEnv* env, jobject, jint ruid, int euid) { |
| 1685 | throwIfMinusOne(env, "setreuid", TEMP_FAILURE_RETRY(setreuid(ruid, euid))); |
| 1686 | } |
| 1687 | |
Elliott Hughes | 6c9b537 | 2012-09-21 10:19:21 -0700 | [diff] [blame] | 1688 | static jint Posix_setsid(JNIEnv* env, jobject) { |
| 1689 | return throwIfMinusOne(env, "setsid", TEMP_FAILURE_RETRY(setsid())); |
| 1690 | } |
| 1691 | |
Elliott Hughes | c63f0d4 | 2011-04-01 15:31:03 -0700 | [diff] [blame] | 1692 | static void Posix_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { |
| 1693 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1694 | u_char byte = value; |
| 1695 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); |
| 1696 | } |
| 1697 | |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 1698 | static void Posix_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { |
| 1699 | struct ifreq req; |
| 1700 | if (!fillIfreq(env, javaInterfaceName, req)) { |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 1701 | return; |
| 1702 | } |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 1703 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1704 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); |
| 1705 | } |
| 1706 | |
Elliott Hughes | 454a95f | 2011-03-29 18:00:14 -0700 | [diff] [blame] | 1707 | static void Posix_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { |
| 1708 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1709 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); |
| 1710 | } |
| 1711 | |
Elliott Hughes | 6c1e5f4 | 2013-01-25 15:10:58 -0800 | [diff] [blame] | 1712 | #if defined(__APPLE__) && MAC_OS_X_VERSION_MAX_ALLOWED < 1070 |
| 1713 | // Mac OS didn't support modern multicast APIs until 10.7. |
| 1714 | static void Posix_setsockoptIpMreqn(JNIEnv*, jobject, jobject, jint, jint, jint) { abort(); } |
| 1715 | static void Posix_setsockoptGroupReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); } |
Neil Fuller | df29508 | 2014-01-30 14:17:54 +0000 | [diff] [blame] | 1716 | static void Posix_setsockoptGroupSourceReq(JNIEnv*, jobject, jobject, jint, jint, jobject) { abort(); } |
Elliott Hughes | 6c1e5f4 | 2013-01-25 15:10:58 -0800 | [diff] [blame] | 1717 | #else |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 1718 | static void Posix_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { |
| 1719 | ip_mreqn req; |
| 1720 | memset(&req, 0, sizeof(req)); |
| 1721 | req.imr_ifindex = value; |
| 1722 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1723 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); |
| 1724 | } |
| 1725 | |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1726 | static void Posix_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 1727 | struct group_req req; |
| 1728 | memset(&req, 0, sizeof(req)); |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1729 | |
| 1730 | static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 1731 | req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1732 | // Get the IPv4 or IPv6 multicast address to join or leave. |
| 1733 | static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); |
Elliott Hughes | e9f1204 | 2011-05-11 11:48:46 -0700 | [diff] [blame] | 1734 | ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 1735 | socklen_t sa_len; |
| 1736 | if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gr_group, sa_len)) { |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1737 | return; |
| 1738 | } |
| 1739 | |
| 1740 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 1741 | int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1742 | if (rc == -1 && errno == EINVAL) { |
| 1743 | // Maybe we're a 32-bit binary talking to a 64-bit kernel? |
| 1744 | // glibc doesn't automatically handle this. |
Neil Fuller | df29508 | 2014-01-30 14:17:54 +0000 | [diff] [blame] | 1745 | // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 |
Elliott Hughes | 9634b56 | 2012-05-18 09:37:47 -0700 | [diff] [blame] | 1746 | struct group_req64 { |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1747 | uint32_t gr_interface; |
| 1748 | uint32_t my_padding; |
| 1749 | sockaddr_storage gr_group; |
| 1750 | }; |
Elliott Hughes | 8ecbb3f | 2011-05-26 15:11:52 -0700 | [diff] [blame] | 1751 | group_req64 req64; |
| 1752 | req64.gr_interface = req.gr_interface; |
| 1753 | memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group)); |
| 1754 | rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1755 | } |
| 1756 | throwIfMinusOne(env, "setsockopt", rc); |
| 1757 | } |
Neil Fuller | df29508 | 2014-01-30 14:17:54 +0000 | [diff] [blame] | 1758 | |
| 1759 | static void Posix_setsockoptGroupSourceReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupSourceReq) { |
| 1760 | socklen_t sa_len; |
| 1761 | struct group_source_req req; |
| 1762 | memset(&req, 0, sizeof(req)); |
| 1763 | |
| 1764 | static jfieldID gsrInterfaceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_interface", "I"); |
| 1765 | req.gsr_interface = env->GetIntField(javaGroupSourceReq, gsrInterfaceFid); |
| 1766 | // Get the IPv4 or IPv6 multicast address to join or leave. |
| 1767 | static jfieldID gsrGroupFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_group", "Ljava/net/InetAddress;"); |
| 1768 | ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupSourceReq, gsrGroupFid)); |
| 1769 | if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gsr_group, sa_len)) { |
| 1770 | return; |
| 1771 | } |
| 1772 | |
| 1773 | // Get the IPv4 or IPv6 multicast address to add to the filter. |
| 1774 | static jfieldID gsrSourceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_source", "Ljava/net/InetAddress;"); |
| 1775 | ScopedLocalRef<jobject> javaSource(env, env->GetObjectField(javaGroupSourceReq, gsrSourceFid)); |
| 1776 | if (!inetAddressToSockaddrVerbatim(env, javaSource.get(), 0, req.gsr_source, sa_len)) { |
| 1777 | return; |
| 1778 | } |
| 1779 | |
| 1780 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1781 | int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); |
| 1782 | if (rc == -1 && errno == EINVAL) { |
| 1783 | // Maybe we're a 32-bit binary talking to a 64-bit kernel? |
| 1784 | // glibc doesn't automatically handle this. |
| 1785 | // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 |
| 1786 | struct group_source_req64 { |
| 1787 | uint32_t gsr_interface; |
| 1788 | uint32_t my_padding; |
| 1789 | sockaddr_storage gsr_group; |
| 1790 | sockaddr_storage gsr_source; |
| 1791 | }; |
| 1792 | group_source_req64 req64; |
| 1793 | req64.gsr_interface = req.gsr_interface; |
| 1794 | memcpy(&req64.gsr_group, &req.gsr_group, sizeof(req.gsr_group)); |
| 1795 | memcpy(&req64.gsr_source, &req.gsr_source, sizeof(req.gsr_source)); |
| 1796 | rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); |
| 1797 | } |
| 1798 | throwIfMinusOne(env, "setsockopt", rc); |
| 1799 | } |
Elliott Hughes | 6c1e5f4 | 2013-01-25 15:10:58 -0800 | [diff] [blame] | 1800 | #endif |
Elliott Hughes | 438cb9e | 2011-04-01 18:05:23 -0700 | [diff] [blame] | 1801 | |
Elliott Hughes | c63f0d4 | 2011-04-01 15:31:03 -0700 | [diff] [blame] | 1802 | static void Posix_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { |
| 1803 | static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); |
| 1804 | static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); |
| 1805 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1806 | struct linger value; |
| 1807 | value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); |
| 1808 | value.l_linger = env->GetIntField(javaLinger, lLingerFid); |
| 1809 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); |
| 1810 | } |
| 1811 | |
| 1812 | static void Posix_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { |
| 1813 | static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); |
| 1814 | static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); |
| 1815 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1816 | struct timeval value; |
Elliott Hughes | 39fd5e1 | 2011-08-14 11:29:07 -0700 | [diff] [blame] | 1817 | value.tv_sec = env->GetLongField(javaTimeval, tvSecFid); |
| 1818 | value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid); |
Elliott Hughes | c63f0d4 | 2011-04-01 15:31:03 -0700 | [diff] [blame] | 1819 | throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); |
| 1820 | } |
| 1821 | |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1822 | static void Posix_setuid(JNIEnv* env, jobject, jint uid) { |
| 1823 | throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); |
| 1824 | } |
| 1825 | |
Jeff Sharkey | 90246a0 | 2015-07-02 12:04:00 -0700 | [diff] [blame] | 1826 | static void Posix_setxattr(JNIEnv* env, jobject, jstring javaPath, jstring javaName, |
| 1827 | jbyteArray javaValue, jint flags) { |
| 1828 | ScopedUtfChars path(env, javaPath); |
| 1829 | if (path.c_str() == NULL) { |
| 1830 | return; |
| 1831 | } |
| 1832 | ScopedUtfChars name(env, javaName); |
| 1833 | if (name.c_str() == NULL) { |
| 1834 | return; |
| 1835 | } |
| 1836 | ScopedBytesRO value(env, javaValue); |
| 1837 | if (value.get() == NULL) { |
| 1838 | return; |
| 1839 | } |
| 1840 | size_t valueLength = env->GetArrayLength(javaValue); |
| 1841 | int res = setxattr(path.c_str(), name.c_str(), value.get(), valueLength, flags); |
| 1842 | if (res < 0) { |
| 1843 | throwErrnoException(env, "setxattr"); |
| 1844 | } |
| 1845 | } |
| 1846 | |
Elliott Hughes | 59e4744 | 2011-03-24 11:36:07 -0700 | [diff] [blame] | 1847 | static void Posix_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { |
| 1848 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1849 | throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); |
| 1850 | } |
| 1851 | |
Elliott Hughes | 454a95f | 2011-03-29 18:00:14 -0700 | [diff] [blame] | 1852 | static jobject Posix_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { |
Lorenzo Colitti | 00bb2a5 | 2015-03-12 16:30:07 +0900 | [diff] [blame] | 1853 | if (domain == AF_PACKET) { |
| 1854 | protocol = htons(protocol); // Packet sockets specify the protocol in host byte order. |
| 1855 | } |
Elliott Hughes | 454a95f | 2011-03-29 18:00:14 -0700 | [diff] [blame] | 1856 | int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); |
| 1857 | return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; |
| 1858 | } |
| 1859 | |
Elliott Hughes | 3218082 | 2012-09-28 15:53:29 -0700 | [diff] [blame] | 1860 | static void Posix_socketpair(JNIEnv* env, jobject, jint domain, jint type, jint protocol, jobject javaFd1, jobject javaFd2) { |
| 1861 | int fds[2]; |
| 1862 | int rc = throwIfMinusOne(env, "socketpair", TEMP_FAILURE_RETRY(socketpair(domain, type, protocol, fds))); |
| 1863 | if (rc != -1) { |
| 1864 | jniSetFileDescriptorOfFD(env, javaFd1, fds[0]); |
| 1865 | jniSetFileDescriptorOfFD(env, javaFd2, fds[1]); |
| 1866 | } |
| 1867 | } |
| 1868 | |
Elliott Hughes | 47cb338 | 2011-03-17 18:28:00 -0700 | [diff] [blame] | 1869 | static jobject Posix_stat(JNIEnv* env, jobject, jstring javaPath) { |
| 1870 | return doStat(env, javaPath, false); |
| 1871 | } |
| 1872 | |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 1873 | static jobject Posix_statvfs(JNIEnv* env, jobject, jstring javaPath) { |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 1874 | ScopedUtfChars path(env, javaPath); |
| 1875 | if (path.c_str() == NULL) { |
| 1876 | return NULL; |
| 1877 | } |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 1878 | struct statvfs sb; |
| 1879 | int rc = TEMP_FAILURE_RETRY(statvfs(path.c_str(), &sb)); |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 1880 | if (rc == -1) { |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 1881 | throwErrnoException(env, "statvfs"); |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 1882 | return NULL; |
| 1883 | } |
Elliott Hughes | 721ceca | 2013-07-09 14:45:43 -0700 | [diff] [blame] | 1884 | return makeStructStatVfs(env, sb); |
Elliott Hughes | 59fa716 | 2011-03-23 14:55:04 -0700 | [diff] [blame] | 1885 | } |
| 1886 | |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 1887 | static jstring Posix_strerror(JNIEnv* env, jobject, jint errnum) { |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 1888 | char buffer[BUFSIZ]; |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 1889 | const char* message = jniStrError(errnum, buffer, sizeof(buffer)); |
| 1890 | return env->NewStringUTF(message); |
| 1891 | } |
| 1892 | |
Elliott Hughes | 763f8ed | 2013-03-28 18:26:05 -0700 | [diff] [blame] | 1893 | static jstring Posix_strsignal(JNIEnv* env, jobject, jint signal) { |
| 1894 | return env->NewStringUTF(strsignal(signal)); |
| 1895 | } |
| 1896 | |
Elliott Hughes | a20cc6f | 2011-03-23 13:49:03 -0700 | [diff] [blame] | 1897 | static void Posix_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { |
| 1898 | ScopedUtfChars oldPath(env, javaOldPath); |
| 1899 | if (oldPath.c_str() == NULL) { |
| 1900 | return; |
| 1901 | } |
| 1902 | ScopedUtfChars newPath(env, javaNewPath); |
| 1903 | if (newPath.c_str() == NULL) { |
| 1904 | return; |
| 1905 | } |
| 1906 | throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); |
| 1907 | } |
| 1908 | |
Elliott Hughes | 6fc1a0e | 2011-03-18 10:28:24 -0700 | [diff] [blame] | 1909 | static jlong Posix_sysconf(JNIEnv* env, jobject, jint name) { |
| 1910 | // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. |
| 1911 | errno = 0; |
| 1912 | long result = sysconf(name); |
| 1913 | if (result == -1L && errno == EINVAL) { |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 1914 | throwErrnoException(env, "sysconf"); |
Elliott Hughes | 6fc1a0e | 2011-03-18 10:28:24 -0700 | [diff] [blame] | 1915 | } |
| 1916 | return result; |
| 1917 | } |
| 1918 | |
Johan Redestig | bb5816a | 2012-01-10 17:48:01 +0900 | [diff] [blame] | 1919 | static void Posix_tcdrain(JNIEnv* env, jobject, jobject javaFd) { |
| 1920 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1921 | throwIfMinusOne(env, "tcdrain", TEMP_FAILURE_RETRY(tcdrain(fd))); |
| 1922 | } |
| 1923 | |
Elliott Hughes | 039f759 | 2012-12-14 16:19:24 -0800 | [diff] [blame] | 1924 | static void Posix_tcsendbreak(JNIEnv* env, jobject, jobject javaFd, jint duration) { |
| 1925 | int fd = jniGetFDFromFileDescriptor(env, javaFd); |
| 1926 | throwIfMinusOne(env, "tcsendbreak", TEMP_FAILURE_RETRY(tcsendbreak(fd, duration))); |
| 1927 | } |
| 1928 | |
Nick Kralevich | c79d3ef | 2012-09-27 13:40:04 -0700 | [diff] [blame] | 1929 | static jint Posix_umaskImpl(JNIEnv*, jobject, jint mask) { |
Elliott Hughes | 44f7875 | 2012-08-16 12:29:52 -0700 | [diff] [blame] | 1930 | return umask(mask); |
| 1931 | } |
| 1932 | |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 1933 | static jobject Posix_uname(JNIEnv* env, jobject) { |
| 1934 | struct utsname buf; |
Elliott Hughes | 9b510df | 2011-05-27 16:48:46 -0700 | [diff] [blame] | 1935 | if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) { |
| 1936 | return NULL; // Can't happen. |
Elliott Hughes | 7341b9e | 2011-03-24 13:51:38 -0700 | [diff] [blame] | 1937 | } |
| 1938 | return makeStructUtsname(env, buf); |
| 1939 | } |
| 1940 | |
Elliott Hughes | 895a613 | 2012-11-05 15:44:56 -0800 | [diff] [blame] | 1941 | static void Posix_unsetenv(JNIEnv* env, jobject, jstring javaName) { |
| 1942 | ScopedUtfChars name(env, javaName); |
| 1943 | if (name.c_str() == NULL) { |
| 1944 | return; |
| 1945 | } |
| 1946 | throwIfMinusOne(env, "unsetenv", unsetenv(name.c_str())); |
| 1947 | } |
| 1948 | |
Elliott Hughes | 9e67ca7 | 2011-05-19 15:25:10 -0700 | [diff] [blame] | 1949 | static jint Posix_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) { |
| 1950 | int status; |
| 1951 | int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options))); |
| 1952 | if (rc != -1) { |
| 1953 | static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); |
| 1954 | env->SetIntField(javaStatus, valueFid, status); |
| 1955 | } |
| 1956 | return rc; |
| 1957 | } |
| 1958 | |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 1959 | static jint Posix_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { |
| 1960 | ScopedBytesRO bytes(env, javaBytes); |
Elliott Hughes | 78c7cc5 | 2011-03-25 19:18:42 -0700 | [diff] [blame] | 1961 | if (bytes.get() == NULL) { |
| 1962 | return -1; |
| 1963 | } |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 1964 | return IO_FAILURE_RETRY(env, ssize_t, write, javaFd, bytes.get() + byteOffset, byteCount); |
Elliott Hughes | 78c7cc5 | 2011-03-25 19:18:42 -0700 | [diff] [blame] | 1965 | } |
| 1966 | |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1967 | static jint Posix_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { |
Elliott Hughes | 8dc7547 | 2011-04-26 10:10:46 -0700 | [diff] [blame] | 1968 | IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1969 | if (!ioVec.init(buffers, offsets, byteCounts)) { |
| 1970 | return -1; |
| 1971 | } |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 1972 | return IO_FAILURE_RETRY(env, ssize_t, writev, javaFd, ioVec.get(), ioVec.size()); |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 1973 | } |
| 1974 | |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 1975 | #define NATIVE_METHOD_OVERLOAD(className, functionName, signature, variant) \ |
| 1976 | { #functionName, signature, reinterpret_cast<void*>(className ## _ ## functionName ## variant) } |
| 1977 | |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 1978 | static JNINativeMethod gMethods[] = { |
Neil Fuller | 0ab1a26 | 2015-07-07 17:03:25 +0100 | [diff] [blame^] | 1979 | NATIVE_METHOD(Posix, accept, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)Ljava/io/FileDescriptor;"), |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 1980 | NATIVE_METHOD(Posix, access, "(Ljava/lang/String;I)Z"), |
Paul Jensen | 3e58734 | 2014-05-12 23:40:42 -0400 | [diff] [blame] | 1981 | NATIVE_METHOD(Posix, android_getaddrinfo, "(Ljava/lang/String;Landroid/system/StructAddrinfo;I)[Ljava/net/InetAddress;"), |
Elliott Hughes | da15009 | 2011-05-09 14:00:48 -0700 | [diff] [blame] | 1982 | NATIVE_METHOD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 1983 | NATIVE_METHOD_OVERLOAD(Posix, bind, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress), |
Elliott Hughes | b719019 | 2011-03-23 17:14:34 -0700 | [diff] [blame] | 1984 | NATIVE_METHOD(Posix, chmod, "(Ljava/lang/String;I)V"), |
Elliott Hughes | 44f7875 | 2012-08-16 12:29:52 -0700 | [diff] [blame] | 1985 | NATIVE_METHOD(Posix, chown, "(Ljava/lang/String;II)V"), |
Elliott Hughes | 462bdac | 2011-03-30 10:43:48 -0700 | [diff] [blame] | 1986 | NATIVE_METHOD(Posix, close, "(Ljava/io/FileDescriptor;)V"), |
Elliott Hughes | 996bf79 | 2011-05-09 18:26:23 -0700 | [diff] [blame] | 1987 | NATIVE_METHOD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), |
Erik Kline | 8f5b46d | 2015-01-26 21:37:16 +0900 | [diff] [blame] | 1988 | NATIVE_METHOD_OVERLOAD(Posix, connect, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 1989 | NATIVE_METHOD(Posix, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), |
| 1990 | NATIVE_METHOD(Posix, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 1991 | NATIVE_METHOD(Posix, environ, "()[Ljava/lang/String;"), |
Nick Kralevich | 798f855 | 2013-02-05 13:02:13 -0800 | [diff] [blame] | 1992 | NATIVE_METHOD(Posix, execv, "(Ljava/lang/String;[Ljava/lang/String;)V"), |
| 1993 | NATIVE_METHOD(Posix, execve, "(Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;)V"), |
Elliott Hughes | 44f7875 | 2012-08-16 12:29:52 -0700 | [diff] [blame] | 1994 | NATIVE_METHOD(Posix, fchmod, "(Ljava/io/FileDescriptor;I)V"), |
| 1995 | NATIVE_METHOD(Posix, fchown, "(Ljava/io/FileDescriptor;II)V"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 1996 | NATIVE_METHOD(Posix, fcntlFlock, "(Ljava/io/FileDescriptor;ILandroid/system/StructFlock;)I"), |
Narayan Kamath | c8d9ea6 | 2015-01-16 17:51:59 +0000 | [diff] [blame] | 1997 | NATIVE_METHOD(Posix, fcntlInt, "(Ljava/io/FileDescriptor;II)I"), |
Narayan Kamath | c8d9ea6 | 2015-01-16 17:51:59 +0000 | [diff] [blame] | 1998 | NATIVE_METHOD(Posix, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 1999 | NATIVE_METHOD(Posix, fdatasync, "(Ljava/io/FileDescriptor;)V"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2000 | NATIVE_METHOD(Posix, fstat, "(Ljava/io/FileDescriptor;)Landroid/system/StructStat;"), |
| 2001 | NATIVE_METHOD(Posix, fstatvfs, "(Ljava/io/FileDescriptor;)Landroid/system/StructStatVfs;"), |
Elliott Hughes | 52724d3 | 2011-03-17 12:13:09 -0700 | [diff] [blame] | 2002 | NATIVE_METHOD(Posix, fsync, "(Ljava/io/FileDescriptor;)V"), |
Elliott Hughes | f5333fd | 2011-03-18 14:13:08 -0700 | [diff] [blame] | 2003 | NATIVE_METHOD(Posix, ftruncate, "(Ljava/io/FileDescriptor;J)V"), |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 2004 | NATIVE_METHOD(Posix, gai_strerror, "(I)Ljava/lang/String;"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 2005 | NATIVE_METHOD(Posix, getegid, "()I"), |
| 2006 | NATIVE_METHOD(Posix, geteuid, "()I"), |
| 2007 | NATIVE_METHOD(Posix, getgid, "()I"), |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 2008 | NATIVE_METHOD(Posix, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), |
Elliott Hughes | 4f11ebe | 2011-04-19 15:38:10 -0700 | [diff] [blame] | 2009 | NATIVE_METHOD(Posix, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), |
Elliott Hughes | 482a3fc | 2013-03-20 16:10:12 -0700 | [diff] [blame] | 2010 | NATIVE_METHOD(Posix, getpeername, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), |
Elliott Hughes | 8f0f2ac | 2014-12-17 11:59:00 -0800 | [diff] [blame] | 2011 | NATIVE_METHOD(Posix, getpgid, "(I)I"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 2012 | NATIVE_METHOD(Posix, getpid, "()I"), |
| 2013 | NATIVE_METHOD(Posix, getppid, "()I"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2014 | NATIVE_METHOD(Posix, getpwnam, "(Ljava/lang/String;)Landroid/system/StructPasswd;"), |
| 2015 | NATIVE_METHOD(Posix, getpwuid, "(I)Landroid/system/StructPasswd;"), |
Elliott Hughes | 0a9d1ee | 2011-03-30 15:35:16 -0700 | [diff] [blame] | 2016 | NATIVE_METHOD(Posix, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), |
| 2017 | NATIVE_METHOD(Posix, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), |
| 2018 | NATIVE_METHOD(Posix, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), |
| 2019 | NATIVE_METHOD(Posix, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2020 | NATIVE_METHOD(Posix, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Landroid/system/StructLinger;"), |
| 2021 | NATIVE_METHOD(Posix, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Landroid/system/StructTimeval;"), |
| 2022 | NATIVE_METHOD(Posix, getsockoptUcred, "(Ljava/io/FileDescriptor;II)Landroid/system/StructUcred;"), |
Elliott Hughes | 069525a | 2013-07-30 11:47:25 -0700 | [diff] [blame] | 2023 | NATIVE_METHOD(Posix, gettid, "()I"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 2024 | NATIVE_METHOD(Posix, getuid, "()I"), |
Jeff Sharkey | 90246a0 | 2015-07-02 12:04:00 -0700 | [diff] [blame] | 2025 | NATIVE_METHOD(Posix, getxattr, "(Ljava/lang/String;Ljava/lang/String;[B)I"), |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 2026 | NATIVE_METHOD(Posix, if_indextoname, "(I)Ljava/lang/String;"), |
Elliott Hughes | fc041ff | 2011-06-03 12:43:17 -0700 | [diff] [blame] | 2027 | NATIVE_METHOD(Posix, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"), |
Elliott Hughes | a37e971 | 2011-04-21 14:07:01 -0700 | [diff] [blame] | 2028 | NATIVE_METHOD(Posix, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2029 | NATIVE_METHOD(Posix, ioctlInt, "(Ljava/io/FileDescriptor;ILandroid/util/MutableInt;)I"), |
Elliott Hughes | 9a3f363 | 2011-03-18 16:30:53 -0700 | [diff] [blame] | 2030 | NATIVE_METHOD(Posix, isatty, "(Ljava/io/FileDescriptor;)Z"), |
Elliott Hughes | a5fb706 | 2011-04-28 15:36:47 -0700 | [diff] [blame] | 2031 | NATIVE_METHOD(Posix, kill, "(II)V"), |
Elliott Hughes | 44f7875 | 2012-08-16 12:29:52 -0700 | [diff] [blame] | 2032 | NATIVE_METHOD(Posix, lchown, "(Ljava/lang/String;II)V"), |
Elliott Hughes | 04428d6 | 2014-05-09 17:42:11 -0700 | [diff] [blame] | 2033 | NATIVE_METHOD(Posix, link, "(Ljava/lang/String;Ljava/lang/String;)V"), |
Elliott Hughes | e1502d6 | 2011-03-24 11:57:08 -0700 | [diff] [blame] | 2034 | NATIVE_METHOD(Posix, listen, "(Ljava/io/FileDescriptor;I)V"), |
Elliott Hughes | dedaccd | 2011-03-18 15:56:20 -0700 | [diff] [blame] | 2035 | NATIVE_METHOD(Posix, lseek, "(Ljava/io/FileDescriptor;JI)J"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2036 | NATIVE_METHOD(Posix, lstat, "(Ljava/lang/String;)Landroid/system/StructStat;"), |
Elliott Hughes | 0f746ff5 | 2011-03-22 16:10:21 -0700 | [diff] [blame] | 2037 | NATIVE_METHOD(Posix, mincore, "(JJ[B)V"), |
Elliott Hughes | c7fa207 | 2011-03-23 17:37:58 -0700 | [diff] [blame] | 2038 | NATIVE_METHOD(Posix, mkdir, "(Ljava/lang/String;I)V"), |
Neil Fuller | f0d40d6 | 2014-04-11 17:16:30 +0100 | [diff] [blame] | 2039 | NATIVE_METHOD(Posix, mkfifo, "(Ljava/lang/String;I)V"), |
Elliott Hughes | 7e13c0f | 2011-03-18 18:52:08 -0700 | [diff] [blame] | 2040 | NATIVE_METHOD(Posix, mlock, "(JJ)V"), |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 2041 | NATIVE_METHOD(Posix, mmap, "(JJIILjava/io/FileDescriptor;J)J"), |
| 2042 | NATIVE_METHOD(Posix, msync, "(JJI)V"), |
Elliott Hughes | 7e13c0f | 2011-03-18 18:52:08 -0700 | [diff] [blame] | 2043 | NATIVE_METHOD(Posix, munlock, "(JJ)V"), |
Elliott Hughes | 7e25eff | 2011-03-18 18:39:29 -0700 | [diff] [blame] | 2044 | NATIVE_METHOD(Posix, munmap, "(JJ)V"), |
Elliott Hughes | 0ac77ac | 2011-03-22 18:45:25 -0700 | [diff] [blame] | 2045 | NATIVE_METHOD(Posix, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), |
Elliott Hughes | 75781e7 | 2014-12-12 14:04:46 -0800 | [diff] [blame] | 2046 | NATIVE_METHOD(Posix, pipe2, "(I)[Ljava/io/FileDescriptor;"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2047 | NATIVE_METHOD(Posix, poll, "([Landroid/system/StructPollfd;I)I"), |
Elliott Hughes | 11f07d3 | 2014-02-03 16:49:47 -0800 | [diff] [blame] | 2048 | NATIVE_METHOD(Posix, posix_fallocate, "(Ljava/io/FileDescriptor;JJ)V"), |
Nick Kralevich | 5215e4c | 2014-04-25 14:59:37 -0700 | [diff] [blame] | 2049 | NATIVE_METHOD(Posix, prctl, "(IJJJJ)I"), |
Elliott Hughes | e3b6fa2 | 2011-06-09 15:30:18 -0700 | [diff] [blame] | 2050 | NATIVE_METHOD(Posix, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), |
| 2051 | NATIVE_METHOD(Posix, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 2052 | NATIVE_METHOD(Posix, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), |
Elliott Hughes | 0b6b3e1 | 2014-01-31 15:29:15 -0800 | [diff] [blame] | 2053 | NATIVE_METHOD(Posix, readlink, "(Ljava/lang/String;)Ljava/lang/String;"), |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 2054 | NATIVE_METHOD(Posix, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), |
Elliott Hughes | 23ec091 | 2011-05-18 18:21:17 -0700 | [diff] [blame] | 2055 | NATIVE_METHOD(Posix, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"), |
Elliott Hughes | c7fa207 | 2011-03-23 17:37:58 -0700 | [diff] [blame] | 2056 | NATIVE_METHOD(Posix, remove, "(Ljava/lang/String;)V"), |
Jeff Sharkey | 90246a0 | 2015-07-02 12:04:00 -0700 | [diff] [blame] | 2057 | NATIVE_METHOD(Posix, removexattr, "(Ljava/lang/String;Ljava/lang/String;)V"), |
Elliott Hughes | a20cc6f | 2011-03-23 13:49:03 -0700 | [diff] [blame] | 2058 | NATIVE_METHOD(Posix, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2059 | NATIVE_METHOD(Posix, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Landroid/util/MutableLong;J)J"), |
Elliott Hughes | 90d96a4 | 2011-05-16 16:43:48 -0700 | [diff] [blame] | 2060 | NATIVE_METHOD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"), |
Lorenzo Colitti | a8b7587 | 2015-03-12 01:23:28 +0900 | [diff] [blame] | 2061 | NATIVE_METHOD_OVERLOAD(Posix, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/SocketAddress;)I", SocketAddress), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 2062 | NATIVE_METHOD(Posix, setegid, "(I)V"), |
Elliott Hughes | 895a613 | 2012-11-05 15:44:56 -0800 | [diff] [blame] | 2063 | NATIVE_METHOD(Posix, setenv, "(Ljava/lang/String;Ljava/lang/String;Z)V"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 2064 | NATIVE_METHOD(Posix, seteuid, "(I)V"), |
| 2065 | NATIVE_METHOD(Posix, setgid, "(I)V"), |
Elliott Hughes | 8f0f2ac | 2014-12-17 11:59:00 -0800 | [diff] [blame] | 2066 | NATIVE_METHOD(Posix, setpgid, "(II)V"), |
| 2067 | NATIVE_METHOD(Posix, setregid, "(II)V"), |
| 2068 | NATIVE_METHOD(Posix, setreuid, "(II)V"), |
Elliott Hughes | 6c9b537 | 2012-09-21 10:19:21 -0700 | [diff] [blame] | 2069 | NATIVE_METHOD(Posix, setsid, "()I"), |
Elliott Hughes | c63f0d4 | 2011-04-01 15:31:03 -0700 | [diff] [blame] | 2070 | NATIVE_METHOD(Posix, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 2071 | NATIVE_METHOD(Posix, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), |
Elliott Hughes | 454a95f | 2011-03-29 18:00:14 -0700 | [diff] [blame] | 2072 | NATIVE_METHOD(Posix, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), |
Elliott Hughes | b974666 | 2011-04-06 12:01:16 -0700 | [diff] [blame] | 2073 | NATIVE_METHOD(Posix, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2074 | NATIVE_METHOD(Posix, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupReq;)V"), |
| 2075 | NATIVE_METHOD(Posix, setsockoptGroupSourceReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupSourceReq;)V"), |
| 2076 | NATIVE_METHOD(Posix, setsockoptLinger, "(Ljava/io/FileDescriptor;IILandroid/system/StructLinger;)V"), |
| 2077 | NATIVE_METHOD(Posix, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILandroid/system/StructTimeval;)V"), |
Elliott Hughes | 396a9c6 | 2011-05-12 15:05:54 -0700 | [diff] [blame] | 2078 | NATIVE_METHOD(Posix, setuid, "(I)V"), |
Jeff Sharkey | 90246a0 | 2015-07-02 12:04:00 -0700 | [diff] [blame] | 2079 | NATIVE_METHOD(Posix, setxattr, "(Ljava/lang/String;Ljava/lang/String;[BI)V"), |
Elliott Hughes | 59e4744 | 2011-03-24 11:36:07 -0700 | [diff] [blame] | 2080 | NATIVE_METHOD(Posix, shutdown, "(Ljava/io/FileDescriptor;I)V"), |
Elliott Hughes | 454a95f | 2011-03-29 18:00:14 -0700 | [diff] [blame] | 2081 | NATIVE_METHOD(Posix, socket, "(III)Ljava/io/FileDescriptor;"), |
Elliott Hughes | 3218082 | 2012-09-28 15:53:29 -0700 | [diff] [blame] | 2082 | NATIVE_METHOD(Posix, socketpair, "(IIILjava/io/FileDescriptor;Ljava/io/FileDescriptor;)V"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2083 | NATIVE_METHOD(Posix, stat, "(Ljava/lang/String;)Landroid/system/StructStat;"), |
| 2084 | NATIVE_METHOD(Posix, statvfs, "(Ljava/lang/String;)Landroid/system/StructStatVfs;"), |
Elliott Hughes | ddfdbb9 | 2011-03-16 19:09:22 -0700 | [diff] [blame] | 2085 | NATIVE_METHOD(Posix, strerror, "(I)Ljava/lang/String;"), |
Elliott Hughes | 763f8ed | 2013-03-28 18:26:05 -0700 | [diff] [blame] | 2086 | NATIVE_METHOD(Posix, strsignal, "(I)Ljava/lang/String;"), |
Elliott Hughes | a20cc6f | 2011-03-23 13:49:03 -0700 | [diff] [blame] | 2087 | NATIVE_METHOD(Posix, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), |
Elliott Hughes | 6fc1a0e | 2011-03-18 10:28:24 -0700 | [diff] [blame] | 2088 | NATIVE_METHOD(Posix, sysconf, "(I)J"), |
Johan Redestig | bb5816a | 2012-01-10 17:48:01 +0900 | [diff] [blame] | 2089 | NATIVE_METHOD(Posix, tcdrain, "(Ljava/io/FileDescriptor;)V"), |
Elliott Hughes | 039f759 | 2012-12-14 16:19:24 -0800 | [diff] [blame] | 2090 | NATIVE_METHOD(Posix, tcsendbreak, "(Ljava/io/FileDescriptor;I)V"), |
Nick Kralevich | c79d3ef | 2012-09-27 13:40:04 -0700 | [diff] [blame] | 2091 | NATIVE_METHOD(Posix, umaskImpl, "(I)I"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2092 | NATIVE_METHOD(Posix, uname, "()Landroid/system/StructUtsname;"), |
Elliott Hughes | 895a613 | 2012-11-05 15:44:56 -0800 | [diff] [blame] | 2093 | NATIVE_METHOD(Posix, unsetenv, "(Ljava/lang/String;)V"), |
Elliott Hughes | 5d930ca | 2014-04-23 17:53:37 -0700 | [diff] [blame] | 2094 | NATIVE_METHOD(Posix, waitpid, "(ILandroid/util/MutableInt;I)I"), |
Elliott Hughes | 0568a63 | 2011-04-25 18:33:06 -0700 | [diff] [blame] | 2095 | NATIVE_METHOD(Posix, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), |
Elliott Hughes | bbac92e | 2011-03-28 19:57:00 -0700 | [diff] [blame] | 2096 | NATIVE_METHOD(Posix, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 2097 | }; |
Elliott Hughes | 7cd6760 | 2012-05-03 17:21:04 -0700 | [diff] [blame] | 2098 | void register_libcore_io_Posix(JNIEnv* env) { |
| 2099 | jniRegisterNativeMethods(env, "libcore/io/Posix", gMethods, NELEM(gMethods)); |
Elliott Hughes | ec617e2 | 2011-03-16 16:42:06 -0700 | [diff] [blame] | 2100 | } |