1ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes/* 2ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Copyright (C) 2011 The Android Open Source Project 3ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 4ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Licensed under the Apache License, Version 2.0 (the "License"); 5ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * you may not use this file except in compliance with the License. 6ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * You may obtain a copy of the License at 7ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 8ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * http://www.apache.org/licenses/LICENSE-2.0 9ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * 10ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * Unless required by applicable law or agreed to in writing, software 11ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * distributed under the License is distributed on an "AS IS" BASIS, 12ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * See the License for the specific language governing permissions and 14ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes * limitations under the License. 15ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes */ 16ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 170965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe#define LOG_TAG "Linux" 18ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 191c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes#include <arpa/inet.h> 20ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes#include <errno.h> 210ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <fcntl.h> 226d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong#include <ifaddrs.h> 238f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline#include <linux/rtnetlink.h> 24b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes#include <net/if.h> 254f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes#include <netdb.h> 260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <netinet/in.h> 27a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti#include <netpacket/packet.h> 2870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes#include <poll.h> 29d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#include <pwd.h> 30a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes#include <signal.h> 31ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes#include <stdlib.h> 325744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#include <sys/capability.h> 33461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes#include <sys/ioctl.h> 347e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes#include <sys/mman.h> 355215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich#include <sys/prctl.h> 36e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath#include <sys/resource.h> 3759e4744d27231f260271dbbca406e0cc39768116Elliott Hughes#include <sys/socket.h> 3847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes#include <sys/stat.h> 39069525a39125c203b658c805685b6045a7d4dfebElliott Hughes#include <sys/syscall.h> 400a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes#include <sys/time.h> 410ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <sys/types.h> 42bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes#include <sys/uio.h> 430ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller#include <sys/un.h> 447341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes#include <sys/utsname.h> 459e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes#include <sys/wait.h> 4690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey#include <sys/xattr.h> 47bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig#include <termios.h> 480ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes#include <unistd.h> 496d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn 50b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers#include <memory> 51efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers 522cb2851f4a528e3e6e3e59cf3e854c2abf9f1811Elliott Hughes#include <android-base/file.h> 532c549f1ba3fb683ab1c4ede75bdcb312e8769672Andreas Gampe#include <android-base/logging.h> 5455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong#include <android-base/strings.h> 55d3a88f94be9fb4d0a6da32cf3a820e5b206ded4aMark Salyzyn#include <log/log.h> 56cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/AsynchronousCloseMonitor.h> 57cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/JNIHelp.h> 58cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/JniConstants.h> 59cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/ScopedBytes.h> 60cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/ScopedLocalRef.h> 61cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/ScopedPrimitiveArray.h> 62cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/ScopedUtfChars.h> 63cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/toStringArray.h> 642cb2851f4a528e3e6e3e59cf3e854c2abf9f1811Elliott Hughes 656d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "ExecStrings.h" 666d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "JniException.h" 676d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "NetworkUtilities.h" 686d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "Portability.h" 696d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn 70efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#ifndef __unused 7137dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers#define __unused __attribute__((__unused__)) 72efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#endif 7337dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers 74d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#define TO_JAVA_STRING(NAME, EXP) \ 75d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jstring NAME = env->NewStringUTF(EXP); \ 76a0b3a2c22454fad9026cff3b0173ada828bad280Chih-Hung Hsieh if ((NAME) == NULL) return NULL; 77d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 782c549f1ba3fb683ab1c4ede75bdcb312e8769672Andreas Gampenamespace { 792c549f1ba3fb683ab1c4ede75bdcb312e8769672Andreas Gampe 80e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias ThiererjfieldID int32RefValueFid; 81e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias ThiererjfieldID int64RefValueFid; 822c549f1ba3fb683ab1c4ede75bdcb312e8769672Andreas Gampe 832c549f1ba3fb683ab1c4ede75bdcb312e8769672Andreas Gampe} // namespace 842c549f1ba3fb683ab1c4ede75bdcb312e8769672Andreas Gampe 851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter { 861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes void operator()(addrinfo* p) const { 871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. 881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes freeaddrinfo(p); 891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}; 921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 935d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamathstruct c_deleter { 945d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath void operator()(void* p) const { 955d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath free(p); 965d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath } 975d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath}; 985d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath 99b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colittistatic bool isIPv4MappedAddress(const sockaddr *sa) { 100b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti const sockaddr_in6 *sin6 = reinterpret_cast<const sockaddr_in6*>(sa); 101b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti return sa != NULL && sa->sa_family == AF_INET6 && 102b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr) || 103b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)); // We map 0.0.0.0 to ::, so :: is mapped. 104b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti} 105b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 106b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti/** 107b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * Perform a socket operation that specifies an IP address, possibly falling back from specifying 108b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * the address as an IPv4-mapped IPv6 address in a struct sockaddr_in6 to specifying it as an IPv4 109b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * address in a struct sockaddr_in. 110b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * 111b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * This is needed because all sockets created by the java.net APIs are IPv6 sockets, and on those 112b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * sockets, IPv4 operations use IPv4-mapped addresses stored in a struct sockaddr_in6. But sockets 1130965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe * created using Linux.socket(AF_INET, ...) are IPv4 sockets and only support operations using IPv4 114b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * socket addresses structures. 115b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti */ 116b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NET_IPV4_FALLBACK(jni_env, return_type, syscall_name, java_fd, java_addr, port, null_addr_ok, args...) ({ \ 117b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti return_type _rc = -1; \ 118b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti do { \ 119b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti sockaddr_storage _ss; \ 120b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti socklen_t _salen; \ 121a0b3a2c22454fad9026cff3b0173ada828bad280Chih-Hung Hsieh if ((java_addr) == NULL && (null_addr_ok)) { \ 122b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* No IP address specified (e.g., sendto() on a connected socket). */ \ 123b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _salen = 0; \ 124b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } else if (!inetAddressToSockaddr(jni_env, java_addr, port, _ss, _salen)) { \ 125b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* Invalid socket address, return -1. inetAddressToSockaddr has already thrown. */ \ 126b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti break; \ 127b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } \ 128b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti sockaddr* _sa = _salen ? reinterpret_cast<sockaddr*>(&_ss) : NULL; \ 129b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* inetAddressToSockaddr always returns an IPv6 sockaddr. Assume that java_fd was created \ 130b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * by Java API calls, which always create IPv6 socket fds, and pass it in as is. */ \ 131b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \ 132b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti if (_rc == -1 && errno == EAFNOSUPPORT && _salen && isIPv4MappedAddress(_sa)) { \ 133b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* We passed in an IPv4 address in an IPv6 sockaddr and the kernel told us that we got \ 134b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * the address family wrong. Pass in the same address in an IPv4 sockaddr. */ \ 135a0b3a2c22454fad9026cff3b0173ada828bad280Chih-Hung Hsieh (jni_env)->ExceptionClear(); \ 136b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti if (!inetAddressToSockaddrVerbatim(jni_env, java_addr, port, _ss, _salen)) { \ 137b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti break; \ 138b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } \ 139b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _sa = reinterpret_cast<sockaddr*>(&_ss); \ 140b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \ 141b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } \ 142b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } while (0); \ 143b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _rc; }) \ 144b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 145996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/** 146f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry networking system calls that can be interrupted with a signal. Unlike 147f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * TEMP_FAILURE_RETRY, this also handles the case where 148f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal a close() or 149f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Thread.interrupt(). Other signals that result in an EINTR result are ignored and the system call 150f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * is retried. 151996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 152f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 153f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: a SocketException if signaled via AsynchronousCloseMonitor, or ErrnoException for other 154f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * failures. 155996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */ 1561124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes#define NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 1571124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes return_type _rc = -1; \ 158b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti int _syscallErrno; \ 159996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes do { \ 160f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller bool _wasSignaled; \ 161996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes { \ 1621124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 163f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 1641124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes _rc = syscall_name(_fd, __VA_ARGS__); \ 165f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _syscallErrno = errno; \ 166f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 167996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 168f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_wasSignaled) { \ 169f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller jniThrowException(jni_env, "java/net/SocketException", "Socket closed"); \ 1705d7c0a378be3f7f505b30e634e7aabf072c4edd0Serguei Katkov _rc = -1; \ 171f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 172f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 173f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 174f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 175f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwErrnoException(jni_env, # syscall_name); \ 176f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 177f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 178f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } while (_rc == -1); /* _syscallErrno == EINTR && !_wasSignaled */ \ 179b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti if (_rc == -1) { \ 180b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti /* If the syscall failed, re-set errno: throwing an exception might have modified it. */ \ 181b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti errno = _syscallErrno; \ 182b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti } \ 183f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _rc; }) 184f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 185f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller/** 186f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry system calls that can be interrupted with a signal. Unlike TEMP_FAILURE_RETRY, this 187f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * also handles the case where AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal 188f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * a close() or Thread.interrupt(). Other signals that result in an EINTR result are ignored and the 189f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * system call is retried. 190f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * 191f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 192f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: an IOException if the file descriptor is already closed, a InterruptedIOException if signaled 193f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * via AsynchronousCloseMonitor, or ErrnoException for other failures. 194f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller */ 195f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#define IO_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 196f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return_type _rc = -1; \ 197b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti int _syscallErrno; \ 19899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller do { \ 19999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller bool _wasSignaled; \ 20099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller { \ 20199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 20299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 20399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _rc = syscall_name(_fd, __VA_ARGS__); \ 20499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _syscallErrno = errno; \ 20599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 20699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 20799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller if (_wasSignaled) { \ 20899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller jniThrowException(jni_env, "java/io/InterruptedIOException", # syscall_name " interrupted"); \ 20999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _rc = -1; \ 21099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller break; \ 21199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 21299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 21399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 21499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller throwErrnoException(jni_env, # syscall_name); \ 21599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller break; \ 21699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 21799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } while (_rc == -1); /* && _syscallErrno == EINTR && !_wasSignaled */ \ 218b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti if (_rc == -1) { \ 219b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti /* If the syscall failed, re-set errno: throwing an exception might have modified it. */ \ 220b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti errno = _syscallErrno; \ 221b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti } \ 222996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc; }) 223996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 224b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NULL_ADDR_OK true 225b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NULL_ADDR_FORBIDDEN false 226b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 2274f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, 2284f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes const char* functionName, int error) { 229ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 230ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 231ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 232ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 233ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 234ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 2354f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); 2364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (detailMessage.get() == NULL) { 237f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 238f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 239f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 240f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 241f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 242ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 243ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 2444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); 245ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 2464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); 247ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 248ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 249dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 250dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 2514f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) { 2524f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int error = errno; 2534f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, 2544f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 2554f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, 2564f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 2574f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); 2584f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 2594f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 2604f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) { 261c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes // Cache the methods ids before we throw, so we don't call GetMethodID with a pending exception. 262c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 263c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 264c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 265c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;I)V"); 266c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes if (errno != 0) { 26775cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to 26875cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES 26975cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a 27075cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM. 27175cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // http://code.google.com/p/android/issues/detail?id=15722 2724f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwErrnoException(env, functionName); 2734f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // Deliberately fall through to throw another exception... 2744f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 2754f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); 2764f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 2774f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 278dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 2797e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 280dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 2817e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 282dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 283dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 28447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 28547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 2868dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT> 287bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 288bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 289bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 290bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 291bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 292bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 293bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 294bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 295bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 296bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 297bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 298bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 299bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 300bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 301bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 302bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 303bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 304bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 305bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 306d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX). 307bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 308e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. 3098dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); 3108dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); 311bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 312bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 313bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 314bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 315bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 316bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 317bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 318bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 319bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 320bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 321bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 322bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 3238dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes for (size_t i = 0; i < mScopedBuffers.size(); ++i) { 3248dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes delete mScopedBuffers[i]; 325bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 326bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 327bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 328bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 329bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 330bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 331bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 332bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 333bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 334bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 335bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 336bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 337bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 338bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 339bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 340bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 3418dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes std::vector<ScopedT*> mScopedBuffers; 342bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 343bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 3440ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller/** 3452550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * Returns a jbyteArray containing the sockaddr_un.sun_path from ss. As per unix(7) sa_len should be 3462550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * the length of ss as returned by getsockname(2), getpeername(2), or accept(2). 3472550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * If the returned array is of length 0 the sockaddr_un refers to an unnamed socket. 3482550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * A null pointer is returned in the event of an error. See unix(7) for more information. 3490ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller */ 3502550a252387631b49a00d2ee5587717cd2a6dda3Neil Fullerstatic jbyteArray getUnixSocketPath(JNIEnv* env, const sockaddr_storage& ss, 3512550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller const socklen_t& sa_len) { 3520ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (ss.ss_family != AF_UNIX) { 3530ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", 3540ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller "getUnixSocketPath unsupported ss_family: %i", ss.ss_family); 3552550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return NULL; 3560ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 3572550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller 3580ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller const struct sockaddr_un* un_addr = reinterpret_cast<const struct sockaddr_un*>(&ss); 3592550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // The length of sun_path is sa_len minus the length of the overhead (ss_family). 3602550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // See unix(7) for details. This calculation must match that of socket_make_sockaddr_un() in 3612550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // socket_local_client.c and javaUnixSocketAddressToSockaddr() to interoperate. 3622550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller size_t pathLength = sa_len - offsetof(struct sockaddr_un, sun_path); 3632550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller 3642550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller jbyteArray javaSunPath = env->NewByteArray(pathLength); 3652550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if (javaSunPath == NULL) { 3662550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return NULL; 3670ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 3682550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller 3692550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if (pathLength > 0) { 3702550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller env->SetByteArrayRegion(javaSunPath, 0, pathLength, 3712550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller reinterpret_cast<const jbyte*>(&un_addr->sun_path)); 3722550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller } 3732550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return javaSunPath; 3740ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller} 3750ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 3760ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage& ss, const socklen_t sa_len) { 3770ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (ss.ss_family == AF_INET || ss.ss_family == AF_INET6) { 3788f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jint port; 3798f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jobject inetAddress = sockaddrToInetAddress(env, ss, &port); 3808f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (inetAddress == NULL) { 3818f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return NULL; // Exception already thrown. 3828f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 3838f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, 3848f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline "<init>", "(Ljava/net/InetAddress;I)V"); 38593a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 38693a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 38793a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 3888f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); 3890ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } else if (ss.ss_family == AF_UNIX) { 3900ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller static jmethodID ctor = env->GetMethodID(JniConstants::unixSocketAddressClass, 3910ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller "<init>", "([B)V"); 39293a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 39393a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 39493a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 3952550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller jbyteArray javaSunPath = getUnixSocketPath(env, ss, sa_len); 3962550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if (!javaSunPath) { 3970ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return NULL; 3980ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 3992550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return env->NewObject(JniConstants::unixSocketAddressClass, ctor, javaSunPath); 4008f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } else if (ss.ss_family == AF_NETLINK) { 4018f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline const struct sockaddr_nl* nl_addr = reinterpret_cast<const struct sockaddr_nl*>(&ss); 4028f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jmethodID ctor = env->GetMethodID(JniConstants::netlinkSocketAddressClass, 4038f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline "<init>", "(II)V"); 40493a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 40593a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 40693a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 4076e888e9390649a9ab2557da5b28bb75be39e1b74Przemyslaw Szczepaniak return env->NewObject(JniConstants::netlinkSocketAddressClass, ctor, 4086e888e9390649a9ab2557da5b28bb75be39e1b74Przemyslaw Szczepaniak static_cast<jint>(nl_addr->nl_pid), 4098f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static_cast<jint>(nl_addr->nl_groups)); 41000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } else if (ss.ss_family == AF_PACKET) { 41100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti const struct sockaddr_ll* sll = reinterpret_cast<const struct sockaddr_ll*>(&ss); 41200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jmethodID ctor = env->GetMethodID(JniConstants::packetSocketAddressClass, 41300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti "<init>", "(SISB[B)V"); 41493a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 41593a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 41693a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 41700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti ScopedLocalRef<jbyteArray> byteArray(env, env->NewByteArray(sll->sll_halen)); 41800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if (byteArray.get() == NULL) { 41900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return NULL; 42000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 42100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti env->SetByteArrayRegion(byteArray.get(), 0, sll->sll_halen, 42200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti reinterpret_cast<const jbyte*>(sll->sll_addr)); 42300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jobject packetSocketAddress = env->NewObject(JniConstants::packetSocketAddressClass, ctor, 42400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jshort>(ntohs(sll->sll_protocol)), 42500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jint>(sll->sll_ifindex), 42600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jshort>(sll->sll_hatype), 42700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jbyte>(sll->sll_pkttype), 42800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti byteArray.get()); 42900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return packetSocketAddress; 43000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 43100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", "unsupported ss_family: %d", 43200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti ss.ss_family); 4338f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return NULL; 4340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 4350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 436d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) { 437d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_name, pw.pw_name); 438d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_dir, pw.pw_dir); 439d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_shell, pw.pw_shell); 440d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>", 441d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V"); 44293a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 44393a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 44493a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 445d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return env->NewObject(JniConstants::structPasswdClass, ctor, 446d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell); 447d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 448d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 449108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniakstatic jobject makeStructTimespec(JNIEnv* env, const struct timespec& ts) { 450108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak static jmethodID ctor = env->GetMethodID(JniConstants::structTimespecClass, "<init>", 451108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak "(JJ)V"); 45293a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 45393a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 45493a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 455108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak return env->NewObject(JniConstants::structTimespecClass, ctor, 456108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak static_cast<jlong>(ts.tv_sec), static_cast<jlong>(ts.tv_nsec)); 457108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak} 458108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak 45913a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kongstatic jobject makeStructStat(JNIEnv* env, const struct stat64& sb) { 46047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 461108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak "(JJIJIIJJLandroid/system/StructTimespec;Landroid/system/StructTimespec;Landroid/system/StructTimespec;JJ)V"); 46293a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 46393a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 46493a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 46593a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak 466fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak jobject atim_timespec = makeStructTimespec(env, sb.st_atim); 467fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak if (atim_timespec == NULL) { 468fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak return NULL; 469fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak } 470fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak jobject mtim_timespec = makeStructTimespec(env, sb.st_mtim); 471fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak if (mtim_timespec == NULL) { 472fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak return NULL; 473fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak } 474fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak jobject ctim_timespec = makeStructTimespec(env, sb.st_ctim); 475fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak if (ctim_timespec == NULL) { 476fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak return NULL; 477fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak } 478fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak 47947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 48059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 48159fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 48259fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 48359fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 484fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak atim_timespec, mtim_timespec, ctim_timespec, 485fe1c2f9ea0666a129a25b7806c2f9e7af2daf4baPrzemyslaw Szczepaniak static_cast<jlong>(sb.st_blksize), static_cast<jlong>(sb.st_blocks)); 48659fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 48759fa7163774d6930a174bc038414a4b780581957Elliott Hughes 488721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject makeStructStatVfs(JNIEnv* env, const struct statvfs& sb) { 489721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatVfsClass, "<init>", 490721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes "(JJJJJJJJJJJ)V"); 49193a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 49293a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 49393a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 49493a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak 495721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return env->NewObject(JniConstants::structStatVfsClass, ctor, 496721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bsize), 497721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_frsize), 498721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_blocks), 499721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bfree), 500721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bavail), 501721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_files), 502721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_ffree), 503721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_favail), 504721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_fsid), 505721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_flag), 506efe42934a8523f2b051a351e5eceebf6216454aeElliott Hughes static_cast<jlong>(sb.f_namemax)); 50747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 50847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 5090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) { 5100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); 51193a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 51293a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 51393a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 5140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); 5150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 5160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 5170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { 5180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); 51993a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 52093a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 52193a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 5220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structTimevalClass, ctor, 5230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); 5240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 5250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 5263deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jobject makeStructUcred(JNIEnv* env, const struct ucred& u __unused) { 52793a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak static jmethodID ctor = env->GetMethodID(JniConstants::structUcredClass, "<init>", "(III)V"); 52893a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 52993a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 53093a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 53193a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return env->NewObject(JniConstants::structUcredClass, ctor, u.pid, u.uid, u.gid); 532482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 533482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 5347341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 535d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(sysname, buf.sysname); 536d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(nodename, buf.nodename); 537d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(release, buf.release); 538d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(version, buf.version); 539d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(machine, buf.machine); 5407341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 5417341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 54293a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 54393a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 54493a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 5457341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 5467341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 5477341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 5487341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 549a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) { 550a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes ScopedUtfChars interfaceName(env, javaInterfaceName); 551a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (interfaceName.c_str() == NULL) { 552a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return false; 553a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 554a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes memset(&req, 0, sizeof(req)); 555a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name)); 556a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes req.ifr_name[sizeof(req.ifr_name) - 1] = '\0'; 557a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return true; 558a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 559a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 5600ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool fillUnixSocketAddress(JNIEnv* env, jobject javaUnixSocketAddress, 5610ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller const sockaddr_storage& ss, const socklen_t& sa_len) { 5620ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (javaUnixSocketAddress == NULL) { 5630ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return true; 5640ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 5652550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller jbyteArray javaSunPath = getUnixSocketPath(env, ss, sa_len); 5662550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if (!javaSunPath) { 5670ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return false; 5680ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 5690ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 5700ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller static jfieldID sunPathFid = 5710ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller env->GetFieldID(JniConstants::unixSocketAddressClass, "sun_path", "[B"); 5722550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller env->SetObjectField(javaUnixSocketAddress, sunPathFid, javaSunPath); 5730ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return true; 5740ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller} 5750ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 5760ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool fillInetSocketAddress(JNIEnv* env, jobject javaInetSocketAddress, 5770ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller const sockaddr_storage& ss) { 5780ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (javaInetSocketAddress == NULL) { 579553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 580553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 581553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes // Fill out the passed-in InetSocketAddress with the sender's IP address and port number. 582553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jint port; 583553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jobject sender = sockaddrToInetAddress(env, ss, &port); 584553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (sender == NULL) { 585553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return false; 586553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 5874cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath static jfieldID holderFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "holder", 5884cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath "Ljava/net/InetSocketAddress$InetSocketAddressHolder;"); 589ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski jobject holder = env->GetObjectField(javaInetSocketAddress, holderFid); 590ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski 5914cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressHolderClass, 5924cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath "addr", "Ljava/net/InetAddress;"); 593ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressHolderClass, "port", "I"); 594ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski env->SetObjectField(holder, addressFid, sender); 595ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski env->SetIntField(holder, portFid, port); 596553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 597553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 598553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 5990ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool fillSocketAddress(JNIEnv* env, jobject javaSocketAddress, const sockaddr_storage& ss, 6000ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller const socklen_t& sa_len) { 6010ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (javaSocketAddress == NULL) { 6020ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return true; 6030ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 6040ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 6050ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { 6060ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return fillInetSocketAddress(env, javaSocketAddress, ss); 6070ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::unixSocketAddressClass)) { 6080ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return fillUnixSocketAddress(env, javaSocketAddress, ss, sa_len); 6090ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 6100ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller jniThrowException(env, "java/lang/UnsupportedOperationException", 6110ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller "unsupported SocketAddress subclass"); 6120ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return false; 6130ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 6140ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller} 6150ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 616f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colittistatic void javaInetSocketAddressToInetAddressAndPort( 617f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti JNIEnv* env, jobject javaInetSocketAddress, jobject& javaInetAddress, jint& port) { 6184cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath static jfieldID holderFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "holder", 6194cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath "Ljava/net/InetSocketAddress$InetSocketAddressHolder;"); 6204cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath jobject holder = env->GetObjectField(javaInetSocketAddress, holderFid); 6214cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath 6228f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID addressFid = env->GetFieldID( 6234cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath JniConstants::inetSocketAddressHolderClass, "addr", "Ljava/net/InetAddress;"); 6244cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressHolderClass, "port", "I"); 6254cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath 6264cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath javaInetAddress = env->GetObjectField(holder, addressFid); 6274cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath port = env->GetIntField(holder, portFid); 628f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti} 629f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti 630f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colittistatic bool javaInetSocketAddressToSockaddr( 631f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 632f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jobject javaInetAddress; 633f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jint port; 634f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port); 635f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti return inetAddressToSockaddr(env, javaInetAddress, port, ss, sa_len); 6368f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 6378f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 6388f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic bool javaNetlinkSocketAddressToSockaddr( 6398f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 6408f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID nlPidFid = env->GetFieldID( 6418f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JniConstants::netlinkSocketAddressClass, "nlPortId", "I"); 6428f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID nlGroupsFid = env->GetFieldID( 6438f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JniConstants::netlinkSocketAddressClass, "nlGroupsMask", "I"); 6448f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 6458f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sockaddr_nl *nlAddr = reinterpret_cast<sockaddr_nl *>(&ss); 6468f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline nlAddr->nl_family = AF_NETLINK; 6478f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline nlAddr->nl_pid = env->GetIntField(javaSocketAddress, nlPidFid); 6488f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline nlAddr->nl_groups = env->GetIntField(javaSocketAddress, nlGroupsFid); 6498f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sa_len = sizeof(sockaddr_nl); 6508f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return true; 6518f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 6528f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 6530ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool javaUnixSocketAddressToSockaddr( 6540ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller JNIEnv* env, jobject javaUnixSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 6550ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller static jfieldID sunPathFid = env->GetFieldID( 6560ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller JniConstants::unixSocketAddressClass, "sun_path", "[B"); 6570ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 6580ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller struct sockaddr_un* un_addr = reinterpret_cast<struct sockaddr_un*>(&ss); 6592550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller memset (un_addr, 0, sizeof(sockaddr_un)); 6600ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller un_addr->sun_family = AF_UNIX; 6610ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 6620ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller jbyteArray javaSunPath = (jbyteArray) env->GetObjectField(javaUnixSocketAddress, sunPathFid); 6630ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller jsize pathLength = env->GetArrayLength(javaSunPath); 6642550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if ((size_t) pathLength > sizeof(sockaddr_un::sun_path)) { 6652550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", 6662550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller "sun_path too long: max=%i, is=%i", 6672550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller sizeof(sockaddr_un::sun_path), pathLength); 6682550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return false; 6690ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 6702550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller env->GetByteArrayRegion(javaSunPath, 0, pathLength, (jbyte*) un_addr->sun_path); 6712550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // sa_len is sun_path plus the length of the overhead (ss_family_t). See unix(7) for 6722550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // details. This calculation must match that of socket_make_sockaddr_un() in 6732550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // socket_local_client.c and getUnixSocketPath() to interoperate. 6742550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller sa_len = offsetof(struct sockaddr_un, sun_path) + pathLength; 6750ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return true; 6760ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller} 6770ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 67800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colittistatic bool javaPacketSocketAddressToSockaddr( 67900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 68000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID protocolFid = env->GetFieldID( 68100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_protocol", "S"); 68200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID ifindexFid = env->GetFieldID( 68300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_ifindex", "I"); 68400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID hatypeFid = env->GetFieldID( 68500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_hatype", "S"); 68600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID pkttypeFid = env->GetFieldID( 68700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_pkttype", "B"); 68800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID addrFid = env->GetFieldID( 68900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_addr", "[B"); 69000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti 69100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sockaddr_ll *sll = reinterpret_cast<sockaddr_ll *>(&ss); 69200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_family = AF_PACKET; 693e0273519773d7b14680fe0aa8bc180836042f245Lorenzo Colitti sll->sll_protocol = htons(env->GetShortField(javaSocketAddress, protocolFid)); 69400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_ifindex = env->GetIntField(javaSocketAddress, ifindexFid); 69500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_hatype = env->GetShortField(javaSocketAddress, hatypeFid); 69600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_pkttype = env->GetByteField(javaSocketAddress, pkttypeFid); 69700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti 69800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jbyteArray sllAddr = (jbyteArray) env->GetObjectField(javaSocketAddress, addrFid); 69900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if (sllAddr == NULL) { 70000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_halen = 0; 70100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti memset(&sll->sll_addr, 0, sizeof(sll->sll_addr)); 70200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } else { 70300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jsize len = env->GetArrayLength(sllAddr); 70400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if ((size_t) len > sizeof(sll->sll_addr)) { 70500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti len = sizeof(sll->sll_addr); 70600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 70700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_halen = len; 70800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti env->GetByteArrayRegion(sllAddr, 0, len, (jbyte*) sll->sll_addr); 70900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 71000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sa_len = sizeof(sockaddr_ll); 71100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return true; 71200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti} 71300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti 7148f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic bool javaSocketAddressToSockaddr( 7158f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 7168f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (javaSocketAddress == NULL) { 7178f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jniThrowNullPointerException(env, NULL); 7188f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return false; 7198f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 7208f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 7218f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (env->IsInstanceOf(javaSocketAddress, JniConstants::netlinkSocketAddressClass)) { 7228f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return javaNetlinkSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 7238f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { 7248f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return javaInetSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 72500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::packetSocketAddressClass)) { 72600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return javaPacketSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 7270ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::unixSocketAddressClass)) { 7280ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return javaUnixSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 7298f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 7308f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jniThrowException(env, "java/lang/UnsupportedOperationException", 7318f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline "unsupported SocketAddress subclass"); 7328f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return false; 7338f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 7348f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 73547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 73647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 73747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 73847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 73947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 74013a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong struct stat64 sb; 74113a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong int rc = isLstat ? TEMP_FAILURE_RETRY(lstat64(path.c_str(), &sb)) 74213a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong : TEMP_FAILURE_RETRY(stat64(path.c_str(), &sb)); 743dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 7447e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 74547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 74647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 74747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 748ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 749ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 750482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject doGetSockName(JNIEnv* env, jobject javaFd, bool is_sockname) { 751482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 752482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage ss; 753482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); 754482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t byteCount = sizeof(ss); 755482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&ss, 0, byteCount); 756482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = is_sockname ? TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)) 757482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes : TEMP_FAILURE_RETRY(getpeername(fd, sa, &byteCount)); 758482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 759482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, is_sockname ? "getsockname" : "getpeername"); 760482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 761482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 7620ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return makeSocketAddress(env, ss, byteCount); 763482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 764482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 765d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesclass Passwd { 766d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughespublic: 7673b527308aae5a23ac71cf5f637b4595a9b55a2dbChih-Hung Hsieh explicit Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) { 768d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX); 769d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBuffer.reset(new char[mBufferSize]); 770d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 771d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 772d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwnam(const char* name) { 773d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 774d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 775d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 776d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwuid(uid_t uid) { 777d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 778d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 779d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 780d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* get() { 781d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return mResult; 782d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 783d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 784d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesprivate: 785d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject process(const char* syscall, int error) { 786d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (mResult == NULL) { 787d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes errno = error; 788d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes throwErrnoException(mEnv, syscall); 789d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 790d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 791d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return makeStructPasswd(mEnv, *mResult); 792d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 793d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 794d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes JNIEnv* mEnv; 795b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<char[]> mBuffer; 796d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes size_t mBufferSize; 797d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd mPwd; 798d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* mResult; 799d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}; 800d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 8015744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic void AssertException(JNIEnv* env) { 8025744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (env->ExceptionCheck() == JNI_FALSE) { 8035744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->FatalError("Expected exception"); 8045744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8055744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 8065744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8075744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe// Note for capabilities functions: 8085744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe// We assume the calls are rare enough that it does not make sense to cache class objects. The 8095744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe// advantage is lower maintenance burden. 8105744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8115744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic bool ReadStructCapUserHeader( 8125744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe JNIEnv* env, jobject java_header, __user_cap_header_struct* c_header) { 8135744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (java_header == nullptr) { 8145744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jniThrowNullPointerException(env, "header is null"); 8155744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8165744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8175744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8185744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jclass> header_class(env, env->FindClass("android/system/StructCapUserHeader")); 8195744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (header_class.get() == nullptr) { 8205744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8215744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8225744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8235744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 8245744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID version_fid = env->GetFieldID(header_class.get(), "version", "I"); 8255744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version_fid == nullptr) { 8265744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8275744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8285744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_header->version = env->GetIntField(java_header, version_fid); 8295744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8305744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8315744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 8325744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID pid_fid = env->GetFieldID(header_class.get(), "pid", "I"); 8335744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (pid_fid == nullptr) { 8345744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8355744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8365744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_header->pid = env->GetIntField(java_header, pid_fid); 8375744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8385744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8395744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return true; 8405744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 8415744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8425744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic void SetStructCapUserHeaderVersion( 8435744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe JNIEnv* env, jobject java_header, __user_cap_header_struct* c_header) { 8445744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jclass> header_class(env, env->FindClass("android/system/StructCapUserHeader")); 8455744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (header_class.get() == nullptr) { 8465744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->ExceptionClear(); 8475744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 8485744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8495744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8505744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID version_fid = env->GetFieldID(header_class.get(), "version", "I"); 8515744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version_fid == nullptr) { 8525744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->ExceptionClear(); 8535744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 8545744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8555744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->SetIntField(java_header, version_fid, c_header->version); 8565744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 8575744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8585744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic jobject CreateStructCapUserData( 8595744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe JNIEnv* env, jclass data_class, __user_cap_data_struct* c_data) { 8605744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (c_data == nullptr) { 8615744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Should not happen. 8625744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jniThrowNullPointerException(env, "data is null"); 8635744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 8645744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8655744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8665744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jmethodID data_cons = env->GetMethodID(data_class, "<init>", "(III)V"); 8675744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (data_cons == nullptr) { 8685744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 8695744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8705744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8715744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jint e = static_cast<jint>(c_data->effective); 8725744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jint p = static_cast<jint>(c_data->permitted); 8735744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jint i = static_cast<jint>(c_data->inheritable); 8745744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return env->NewObject(data_class, data_cons, e, p, i); 8755744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 8765744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8775744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic bool ReadStructCapUserData(JNIEnv* env, jobject java_data, __user_cap_data_struct* c_data) { 8785744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (java_data == nullptr) { 8795744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jniThrowNullPointerException(env, "data is null"); 8805744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8815744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8825744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8835744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jclass> data_class(env, env->FindClass("android/system/StructCapUserData")); 8845744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (data_class.get() == nullptr) { 8855744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8865744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8875744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8885744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 8895744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID effective_fid = env->GetFieldID(data_class.get(), "effective", "I"); 8905744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (effective_fid == nullptr) { 8915744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8925744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8935744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_data->effective = env->GetIntField(java_data, effective_fid); 8945744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8955744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8965744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 8975744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID permitted_fid = env->GetFieldID(data_class.get(), "permitted", "I"); 8985744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (permitted_fid == nullptr) { 8995744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 9005744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9015744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_data->permitted = env->GetIntField(java_data, permitted_fid); 9025744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9035744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 9045744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 9055744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 9065744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID inheritable_fid = env->GetFieldID(data_class.get(), "inheritable", "I"); 9075744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (inheritable_fid == nullptr) { 9085744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 9095744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9105744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_data->inheritable = env->GetIntField(java_data, inheritable_fid); 9115744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9125744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 9135744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return true; 9145744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 9155744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 9165744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic constexpr size_t kMaxCapUserDataLength = 2U; 9175744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_1 9185744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic_assert(kMaxCapUserDataLength >= _LINUX_CAPABILITY_U32S_1, "Length too small."); 9195744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 9205744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_2 9215744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic_assert(kMaxCapUserDataLength >= _LINUX_CAPABILITY_U32S_2, "Length too small."); 9225744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 9235744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_3 9245744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic_assert(kMaxCapUserDataLength >= _LINUX_CAPABILITY_U32S_3, "Length too small."); 9255744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 9265744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_4 9275744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic_assert(false, "Unsupported capability version, please update."); 9285744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 9295744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 9305744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic size_t GetCapUserDataLength(uint32_t version) { 9315744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_1 9325744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version == _LINUX_CAPABILITY_VERSION_1) { 9335744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return _LINUX_CAPABILITY_U32S_1; 9345744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9355744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 9365744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_2 9375744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version == _LINUX_CAPABILITY_VERSION_2) { 9385744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return _LINUX_CAPABILITY_U32S_2; 9395744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9405744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 9415744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_3 9425744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version == _LINUX_CAPABILITY_VERSION_3) { 9435744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return _LINUX_CAPABILITY_U32S_3; 9445744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9455744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 9465744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return 0; 9475744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 9485744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 9490965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { 950553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr_storage ss; 951553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t sl = sizeof(ss); 952553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes memset(&ss, 0, sizeof(ss)); 9530ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller sockaddr* peer = (javaSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 9540ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller socklen_t* peerLength = (javaSocketAddress != NULL) ? &sl : 0; 9551124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint clientFd = NET_FAILURE_RETRY(env, int, accept, javaFd, peer, peerLength); 9560ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (clientFd == -1 || !fillSocketAddress(env, javaSocketAddress, ss, *peerLength)) { 957553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes close(clientFd); 958553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return NULL; 959553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 960553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL; 961553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 962553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 9630965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jboolean Linux_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 964ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 965ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 966ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 967ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 96847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 969dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 9707e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 971dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 972ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 973ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 974ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 9750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 9761124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes // We don't need the return value because we'll already have thrown. 977b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti (void) NET_IPV4_FALLBACK(env, int, bind, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN); 978da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes} 979da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes 9800965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_bindSocketAddress( 9818f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { 9828f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sockaddr_storage ss; 9838f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline socklen_t sa_len; 9848f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { 9858f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return; // Exception already thrown. 9868f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 9878f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 9888f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 9898f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline // We don't need the return value because we'll already have thrown. 9908f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline (void) NET_FAILURE_RETRY(env, int, bind, javaFd, sa, sa_len); 9918f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 9928f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 9935744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic jobjectArray Linux_capget(JNIEnv* env, jobject, jobject header) { 9945744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Convert Java header struct to kernel datastructure. 9955744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe __user_cap_header_struct cap_header; 9965744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (!ReadStructCapUserHeader(env, header, &cap_header)) { 9975744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe AssertException(env); 9985744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 9995744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10005744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 10015744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Call capget. 10025744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe __user_cap_data_struct cap_data[kMaxCapUserDataLength]; 10035744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (capget(&cap_header, &cap_data[0]) == -1) { 10045744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Check for EINVAL. In that case, mutate the header. 10055744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (errno == EINVAL) { 10065744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe int saved_errno = errno; 10075744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe SetStructCapUserHeaderVersion(env, header, &cap_header); 10085744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe errno = saved_errno; 10095744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10105744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe throwErrnoException(env, "capget"); 10115744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 10125744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10135744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 10145744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Create the result array. 10155744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jclass> data_class(env, env->FindClass("android/system/StructCapUserData")); 10165744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (data_class.get() == nullptr) { 10175744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 10185744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10195744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe size_t result_size = GetCapUserDataLength(cap_header.version); 10205744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jobjectArray> result( 10215744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env, env->NewObjectArray(result_size, data_class.get(), nullptr)); 10225744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (result.get() == nullptr) { 10235744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 10245744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10255744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Translate the values we got. 10265744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe for (size_t i = 0; i < result_size; ++i) { 10275744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jobject> value( 10285744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env, CreateStructCapUserData(env, data_class.get(), &cap_data[i])); 10295744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (value.get() == nullptr) { 10305744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe AssertException(env); 10315744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 10325744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10335744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->SetObjectArrayElement(result.get(), i, value.get()); 10345744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10355744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return result.release(); 10365744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 10375744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 10385744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic void Linux_capset( 10395744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe JNIEnv* env, jobject, jobject header, jobjectArray data) { 10405744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Convert Java header struct to kernel datastructure. 10415744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe __user_cap_header_struct cap_header; 10425744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (!ReadStructCapUserHeader(env, header, &cap_header)) { 10435744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe AssertException(env); 10445744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 10455744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10465744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe size_t result_size = GetCapUserDataLength(cap_header.version); 10475744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Ensure that the array has the expected length. 10485744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (env->GetArrayLength(data) != static_cast<jint>(result_size)) { 10495744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jniThrowExceptionFmt(env, 10505744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe "java/lang/IllegalArgumentException", 10515744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe "Unsupported input length %d (expected %zu)", 10525744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->GetArrayLength(data), 10535744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe result_size); 10545744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 10555744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10565744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 10575744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe __user_cap_data_struct cap_data[kMaxCapUserDataLength]; 10585744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Translate the values we got. 10595744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe for (size_t i = 0; i < result_size; ++i) { 10605744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jobject> value(env, env->GetObjectArrayElement(data, i)); 10615744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (!ReadStructCapUserData(env, value.get(), &cap_data[i])) { 10625744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe AssertException(env); 10635744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 10645744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10655744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10665744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 10675744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe throwIfMinusOne(env, "capset", capset(&cap_header, &cap_data[0])); 10685744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 10695744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 10700965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 1071b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 1072b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 1073b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 1074b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 1075b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 1076b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 1077b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 10780965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_chown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 107944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 108044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 108144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 108244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 108344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "chown", TEMP_FAILURE_RETRY(chown(path.c_str(), uid, gid))); 108444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 108544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 10860965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_close(JNIEnv* env, jobject, jobject javaFd) { 1087462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Get the FileDescriptor's 'fd' field and clear it. 1088462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // We need to do this before we can throw an IOException (http://b/3222087). 1089462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1090462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd, -1); 1091462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 1092462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Even if close(2) fails with EINTR, the fd will have been closed. 1093462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. 1094462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html 1095462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes throwIfMinusOne(env, "close", close(fd)); 1096462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes} 1097462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 10980965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 1099b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti (void) NET_IPV4_FALLBACK(env, int, connect, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN); 1100996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes} 1101996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 11020965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_connectSocketAddress( 11038f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { 11048f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sockaddr_storage ss; 11058f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline socklen_t sa_len; 11068f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { 11078f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return; // Exception already thrown. 11088f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 11098f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 11108f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 11118f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline // We don't need the return value because we'll already have thrown. 11128f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline (void) NET_FAILURE_RETRY(env, int, connect, javaFd, sa, sa_len); 11138f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 11148f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 11150965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_dup(JNIEnv* env, jobject, jobject javaOldFd) { 1116396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 1117396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); 1118396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; 1119396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1120396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 11210965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { 1122396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 1123396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); 1124396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; 1125396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1126396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 11270965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_environ(JNIEnv* env, jobject) { 1128ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 1129ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 1130ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 1131ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 11320965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_execve(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv, jobjectArray javaEnvp) { 1133798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 1134798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 1135798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 1136798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 1137798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 1138ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 1139ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings envp(env, javaEnvp); 1140fa542091e45db699a937c5ac0191194405107827Elliott Hughes TEMP_FAILURE_RETRY(execve(path.c_str(), argv.get(), envp.get())); 1141798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 1142798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execve"); 1143798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 1144798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 11450965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_execv(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv) { 1146798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 1147798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 1148798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 1149798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 1150798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 1151ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 1152fa542091e45db699a937c5ac0191194405107827Elliott Hughes TEMP_FAILURE_RETRY(execv(path.c_str(), argv.get())); 1153798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 1154798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execv"); 1155798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 1156798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 11570965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_fchmod(JNIEnv* env, jobject, jobject javaFd, jint mode) { 115844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 115944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchmod", TEMP_FAILURE_RETRY(fchmod(fd, mode))); 116044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 116144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 11620965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_fchown(JNIEnv* env, jobject, jobject javaFd, jint uid, jint gid) { 116344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 116444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchown", TEMP_FAILURE_RETRY(fchown(fd, uid, gid))); 116544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 116644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 11670965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 1168fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 1169fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 1170fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 1171fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 1172fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 1173fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 1174fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 1175fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 1176fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 1177fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 1178fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 1179fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 1180fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 1181fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 11828add3229ceb13f2aa5d15b84cc59f5ecc6b90214Neil Fuller int rc = IO_FAILURE_RETRY(env, int, fcntl, javaFd, cmd, &lock); 1183fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 1184fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 1185fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 1186fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 1187fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 1188fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 1189fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 1190fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 1191fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 1192fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 11930965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_fcntlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jint arg) { 1194c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath int fd = jniGetFDFromFileDescriptor(env, javaFd); 1195c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 1196c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath} 1197c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath 11980965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 1199c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath int fd = jniGetFDFromFileDescriptor(env, javaFd); 1200c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 1201c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath} 1202c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath 12030965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 120452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 12057e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 120652724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 120752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 12080965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_fstat(JNIEnv* env, jobject, jobject javaFd) { 120947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 121013a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong struct stat64 sb; 121113a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong int rc = TEMP_FAILURE_RETRY(fstat64(fd, &sb)); 1212dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 12137e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 121447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 121547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 121647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 121747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 121847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 12190965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_fstatvfs(JNIEnv* env, jobject, jobject javaFd) { 122059fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1221721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 1222721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatvfs(fd, &sb)); 122359fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 1224721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "fstatvfs"); 122559fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 122659fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 1227721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 122859fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 122959fa7163774d6930a174bc038414a4b780581957Elliott Hughes 12300965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_fsync(JNIEnv* env, jobject, jobject javaFd) { 123152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 12327e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 1233f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 1234f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 12350965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 1236f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 12377e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 123852724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 123952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 12400965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_gai_strerror(JNIEnv* env, jobject, jint error) { 12414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(gai_strerror(error)); 12424f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 12434f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 12440965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_android_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, 12453e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen jobject javaHints, jint netId) { 12461c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars node(env, javaNode); 12471c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (node.c_str() == NULL) { 12481c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 12491c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12501c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12511c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); 12521c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); 12531c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); 12541c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); 12551c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12561c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo hints; 12571c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&hints, 0, sizeof(hints)); 12581c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_flags = env->GetIntField(javaHints, flagsFid); 12591c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_family = env->GetIntField(javaHints, familyFid); 12601c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); 12611c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_protocol = env->GetIntField(javaHints, protocolFid); 12621c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12631c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo* addressList = NULL; 126475cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 12653e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen int rc = android_getaddrinfofornet(node.c_str(), NULL, &hints, netId, 0, &addressList); 1266b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); 12671c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (rc != 0) { 12683e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen throwGaiException(env, "android_getaddrinfo", rc); 12691c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 12701c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Count results so we know how to size the output array. 12731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int addressCount = 0; 12741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 12751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { 12761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++addressCount; 12771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } else { 12783e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); 12791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (addressCount == 0) { 12821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 12831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Prepare output array. 12861c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); 12871c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (result == NULL) { 12881c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 12891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Examine returned addresses one by one, save them in the output array. 12921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int index = 0; 12931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 12941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { 12951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Unknown address family. Skip this address. 12963e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); 12971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes continue; 12981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 13001c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Convert each IP address into a Java byte array. 1301482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage& address = *reinterpret_cast<sockaddr_storage*>(ai->ai_addr); 130223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL)); 13031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inetAddress.get() == NULL) { 13041c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 13051c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 13061c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes env->SetObjectArrayElement(result, index, inetAddress.get()); 13071c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++index; 13081c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 13091c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return result; 13101c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 13111c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 13120965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getegid(JNIEnv*, jobject) { 1313564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return getegid(); 1314396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1315396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 13160965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_geteuid(JNIEnv*, jobject) { 1317564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return geteuid(); 1318396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1319396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 13200965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getgid(JNIEnv*, jobject) { 1321564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return getgid(); 1322396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1323396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 13240965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_getenv(JNIEnv* env, jobject, jstring javaName) { 1325ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 1326ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 1327ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 1328ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 1329ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 1330ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 1331ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 13320965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { 13334f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes sockaddr_storage ss; 1334482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 1335482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, ss, sa_len)) { 13364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 13374f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 13384f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. 133975cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 1340482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), sa_len, buf, sizeof(buf), NULL, 0, flags); 13414f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (rc != 0) { 13424f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwGaiException(env, "getnameinfo", rc); 13434f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 13444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 13454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(buf); 13464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 13474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 13480965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getpeername(JNIEnv* env, jobject, jobject javaFd) { 1349482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, false); 1350482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 1351482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 13520965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getpgid(JNIEnv* env, jobject, jint pid) { 13538f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes return throwIfMinusOne(env, "getpgid", TEMP_FAILURE_RETRY(getpgid(pid))); 13548f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 13558f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 13560965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getpid(JNIEnv*, jobject) { 1357fa542091e45db699a937c5ac0191194405107827Elliott Hughes return TEMP_FAILURE_RETRY(getpid()); 1358396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1359396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 13600965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getppid(JNIEnv*, jobject) { 1361fa542091e45db699a937c5ac0191194405107827Elliott Hughes return TEMP_FAILURE_RETRY(getppid()); 1362396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1363396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 13640965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getpwnam(JNIEnv* env, jobject, jstring javaName) { 1365d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes ScopedUtfChars name(env, javaName); 1366d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (name.c_str() == NULL) { 1367d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 1368d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 1369d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwnam(name.c_str()); 1370d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 1371d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 13720965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getpwuid(JNIEnv* env, jobject, jint uid) { 1373d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwuid(uid); 1374d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 1375d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 1376e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamathstatic jobject Linux_getrlimit(JNIEnv* env, jobject, jint resource) { 1377e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath struct rlimit r; 1378e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath if (throwIfMinusOne(env, "getrlimit", TEMP_FAILURE_RETRY(getrlimit(resource, &r))) == -1) { 1379e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath return nullptr; 1380e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath } 1381e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath 1382e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath ScopedLocalRef<jclass> rlimit_class(env, env->FindClass("android/system/StructRlimit")); 1383e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath jmethodID ctor = env->GetMethodID(rlimit_class.get(), "<init>", "(JJ)V"); 138493a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 138593a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 138693a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 1387e785612bdf3b0112b5a1854bdf241f0ef87a3171Narayan Kamath return env->NewObject(rlimit_class.get(), ctor, 1388e785612bdf3b0112b5a1854bdf241f0ef87a3171Narayan Kamath static_cast<jlong>(r.rlim_cur), 1389e785612bdf3b0112b5a1854bdf241f0ef87a3171Narayan Kamath static_cast<jlong>(r.rlim_max)); 1390e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath} 1391e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath 13920965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockname(JNIEnv* env, jobject, jobject javaFd) { 1393482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, true); 13940a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 13950a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 13960965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 13970a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 13980a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes u_char result = 0; 13990a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 14000a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 14010a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 14020a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 14030a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 14040965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 14050a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 14060a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 14070a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, sizeof(ss)); 14080a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. 14090a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); 14100a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(sa->sin_addr); 14110a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); 14120a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 14130a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 14140a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 14150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 1416482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 14170a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 14180a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 14190965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 14200a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 14210a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jint result = 0; 14220a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 14230a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 14240a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 14250a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 14260a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 14270965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 14280a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 14290a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct linger l; 14300a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(l); 14310a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&l, 0, size); 14320a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); 14330a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 14340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 14350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 14360a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 14370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructLinger(env, l); 14380a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 14390a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 14400965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 14410a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 14420a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct timeval tv; 14430a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(tv); 14440a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&tv, 0, size); 14450a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); 14460a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 14470a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 14480a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 14490a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 14500a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructTimeval(env, tv); 14510a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 14520a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 14530965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockoptUcred(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 1454482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1455482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes struct ucred u; 1456482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t size = sizeof(u); 1457482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&u, 0, size); 1458482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &u, &size)); 1459482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 1460482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, "getsockopt"); 1461482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 1462482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 1463482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return makeStructUcred(env, u); 1464482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 1465482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 14660965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_gettid(JNIEnv* env __unused, jobject) { 1467efe42934a8523f2b051a351e5eceebf6216454aeElliott Hughes#if defined(__BIONIC__) 1468fa542091e45db699a937c5ac0191194405107827Elliott Hughes return TEMP_FAILURE_RETRY(gettid()); 14693deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 1470069525a39125c203b658c805685b6045a7d4dfebElliott Hughes return syscall(__NR_gettid); 14713deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 1472069525a39125c203b658c805685b6045a7d4dfebElliott Hughes} 1473069525a39125c203b658c805685b6045a7d4dfebElliott Hughes 14740965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getuid(JNIEnv*, jobject) { 1475564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return getuid(); 1476396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1477396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 14780965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jbyteArray Linux_getxattr(JNIEnv* env, jobject, jstring javaPath, 147940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong jstring javaName) { 148090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars path(env, javaPath); 148190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (path.c_str() == NULL) { 148240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 148390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 148490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars name(env, javaName); 148590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (name.c_str() == NULL) { 148640afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 148790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 148840afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong 148940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong while (true) { 149040afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong // Get the current size of the named extended attribute. 149140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong ssize_t valueLength; 149240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong if ((valueLength = getxattr(path.c_str(), name.c_str(), NULL, 0)) < 0) { 149340afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong throwErrnoException(env, "getxattr"); 149440afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 149540afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong } 149640afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong 149740afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong // Create the actual byte array. 149840afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong std::vector<char> buf(valueLength); 149940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong if ((valueLength = getxattr(path.c_str(), name.c_str(), buf.data(), valueLength)) < 0) { 150040afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong if (errno == ERANGE) { 150140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong // The attribute value has changed since last getxattr call and buf no longer fits, 150240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong // try again. 150340afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong continue; 150440afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong } 150540afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong throwErrnoException(env, "getxattr"); 150640afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 150740afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong } 150840afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong jbyteArray array = env->NewByteArray(valueLength); 150940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong if (array == NULL) { 151040afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 151140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong } 151240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong env->SetByteArrayRegion(array, 0, valueLength, reinterpret_cast<const jbyte*>(buf.data())); 151340afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return array; 151490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 151590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey} 151690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey 15170965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_getifaddrs(JNIEnv* env, jobject) { 15186d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong static jmethodID ctor = env->GetMethodID(JniConstants::structIfaddrs, "<init>", 15196d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong "(Ljava/lang/String;ILjava/net/InetAddress;Ljava/net/InetAddress;Ljava/net/InetAddress;[B)V"); 152093a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (ctor == NULL) { 152193a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 152293a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 15236d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15246d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong ifaddrs* ifaddr; 15256d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong int rc = TEMP_FAILURE_RETRY(getifaddrs(&ifaddr)); 15266d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (rc == -1) { 15276d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong throwErrnoException(env, "getifaddrs"); 15286d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15296d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15306d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong std::unique_ptr<ifaddrs, decltype(&freeifaddrs)> ifaddrPtr(ifaddr, freeifaddrs); 15316d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15326d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Count results so we know how to size the output array. 15336d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jint ifCount = 0; 15346d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong for (ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { 15356d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong ++ifCount; 15366d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15376d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15386d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Prepare output array. 15396d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jobjectArray result = env->NewObjectArray(ifCount, JniConstants::structIfaddrs, NULL); 15406d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (result == NULL) { 15416d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15426d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15436d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15446d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Traverse the list and populate the output array. 15456d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong int index = 0; 15466d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong for (ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next, ++index) { 15476d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong TO_JAVA_STRING(name, ifa->ifa_name); 15486d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jint flags = ifa->ifa_flags; 15496d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong sockaddr_storage* interfaceAddr = 15506d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong reinterpret_cast<sockaddr_storage*>(ifa->ifa_addr); 15516d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong sockaddr_storage* netmaskAddr = 15526d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong reinterpret_cast<sockaddr_storage*>(ifa->ifa_netmask); 15536d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong sockaddr_storage* broadAddr = 15546d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong reinterpret_cast<sockaddr_storage*>(ifa->ifa_broadaddr); 15556d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15566d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jobject addr, netmask, broad; 15576d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jbyteArray hwaddr = NULL; 15586d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (interfaceAddr != NULL) { 15596d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong switch (interfaceAddr->ss_family) { 15606d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong case AF_INET: 15616d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong case AF_INET6: 15626d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // IPv4 / IPv6. 15636d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // interfaceAddr and netmaskAddr are never null. 15646d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if ((addr = sockaddrToInetAddress(env, *interfaceAddr, NULL)) == NULL) { 15656d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15666d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15676d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if ((netmask = sockaddrToInetAddress(env, *netmaskAddr, NULL)) == NULL) { 15686d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15696d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15706d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (broadAddr != NULL && (ifa->ifa_flags & IFF_BROADCAST)) { 15716d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if ((broad = sockaddrToInetAddress(env, *broadAddr, NULL)) == NULL) { 15726d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15736d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15746d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } else { 15756d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong broad = NULL; 15766d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15776d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong break; 15786d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong case AF_PACKET: 15796d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Raw Interface. 15806d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong sockaddr_ll* sll = reinterpret_cast<sockaddr_ll*>(ifa->ifa_addr); 15816d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15826d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong bool allZero = true; 15836d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong for (int i = 0; i < sll->sll_halen; ++i) { 15846d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (sll->sll_addr[i] != 0) { 15856d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong allZero = false; 15866d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong break; 15876d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15886d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15896d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15906d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (!allZero) { 15916d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong hwaddr = env->NewByteArray(sll->sll_halen); 15926d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (hwaddr == NULL) { 15936d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15946d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15956d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong env->SetByteArrayRegion(hwaddr, 0, sll->sll_halen, 15966d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong reinterpret_cast<const jbyte*>(sll->sll_addr)); 15976d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15986d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong addr = netmask = broad = NULL; 15996d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong break; 16006d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 16016d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } else { 16026d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Preserve the entry even if the interface has no interface address. 16036d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // http://b/29243557/ 16046d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong addr = netmask = broad = NULL; 16056d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 16066d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 16076d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jobject o = env->NewObject(JniConstants::structIfaddrs, ctor, name, flags, addr, netmask, 16086d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong broad, hwaddr); 160993a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak if (o == NULL) { 161093a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak return NULL; 161193a973589d69b7e4a725c058761b79a5d6600796Przemyslaw Szczepaniak } 16126d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong env->SetObjectArrayElement(result, index, o); 16136d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 16146d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 16156d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return result; 16166d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong} 16176d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 16180965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_if_indextoname(JNIEnv* env, jobject, jint index) { 1619a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char buf[IF_NAMESIZE]; 1620a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char* name = if_indextoname(index, buf); 1621a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. 1622a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // There's no useful information in errno, so we don't bother throwing. Callers can null-check. 1623a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return env->NewStringUTF(name); 1624a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 1625a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 16260965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_if_nametoindex(JNIEnv* env, jobject, jstring name) { 16276d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong ScopedUtfChars cname(env, name); 1628507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong if (cname.c_str() == NULL) { 1629507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong return 0; 1630507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong } 1631507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong 16326d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // There's no useful information in errno, so we don't bother throwing. Callers can zero-check. 16336d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return if_nametoindex(cname.c_str()); 16346d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong} 16356d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 16360965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) { 16371c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars name(env, javaName); 16381c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (name.c_str() == NULL) { 16391c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 16401c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 16411c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage ss; 16421c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&ss, 0, sizeof(ss)); 1643fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here. 1644fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr; 1645fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes if (inet_pton(family, name.c_str(), dst) != 1) { 16461c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 16471c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 1648fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes ss.ss_family = family; 1649482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 16501c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 16511c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 16520965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_ioctlFlags(JNIEnv* env, jobject, jobject javaFd, jstring javaInterfaceName) { 165345348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong struct ifreq req; 165445348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong if (!fillIfreq(env, javaInterfaceName, req)) { 165545348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong return 0; 165645348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong } 165745348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong int fd = jniGetFDFromFileDescriptor(env, javaFd); 165845348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, SIOCGIFFLAGS, &req))); 165945348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong return req.ifr_flags; 166045348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong} 166145348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong 16620965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { 1663a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 1664a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 1665a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 1666a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 1667a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1668a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); 1669a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (rc == -1) { 1670a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 1671a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 1672482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage&>(req.ifr_addr), NULL); 1673a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 1674a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 16750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 16768b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 16778b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 1678461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1679e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer jint arg = env->GetIntField(javaArg, int32RefValueFid); 16808b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 16818b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 1682e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer env->SetIntField(javaArg, int32RefValueFid, arg); 16838b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 16848b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 1685461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 1686461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 16870965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_ioctlMTU(JNIEnv* env, jobject, jobject javaFd, jstring javaInterfaceName) { 168845348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong struct ifreq req; 168945348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong if (!fillIfreq(env, javaInterfaceName, req)) { 169045348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong return 0; 169145348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong } 169245348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong int fd = jniGetFDFromFileDescriptor(env, javaFd); 169345348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, SIOCGIFMTU, &req))); 169445348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong return req.ifr_mtu; 169545348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong} 169645348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong 16970965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jboolean Linux_isatty(JNIEnv* env, jobject, jobject javaFd) { 16989a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1699bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig return TEMP_FAILURE_RETRY(isatty(fd)) == 1; 17009a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 17019a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 17020965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_kill(JNIEnv* env, jobject, jint pid, jint sig) { 1703a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); 1704a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes} 1705a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes 17060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_lchown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 170744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 170844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 170944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 171044f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 171144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "lchown", TEMP_FAILURE_RETRY(lchown(path.c_str(), uid, gid))); 171244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 171344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 17140965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_link(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 171504428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 171604428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (oldPath.c_str() == NULL) { 171704428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 171804428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 171904428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 172004428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (newPath.c_str() == NULL) { 172104428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 172204428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 172304428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes throwIfMinusOne(env, "link", TEMP_FAILURE_RETRY(link(oldPath.c_str(), newPath.c_str()))); 172404428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes} 172504428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes 17260965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 1727e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1728e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 1729e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 1730e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 17310965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_listxattr(JNIEnv* env, jobject, jstring javaPath) { 173255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong ScopedUtfChars path(env, javaPath); 173355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong if (path.c_str() == NULL) { 173455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong return NULL; 173555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 173655dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 173755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong while (true) { 173855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // Get the current size of the named extended attribute. 173955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong ssize_t valueLength; 174055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong if ((valueLength = listxattr(path.c_str(), NULL, 0)) < 0) { 174155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong throwErrnoException(env, "listxattr"); 174255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong return NULL; 174355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 174455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 174555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // Create the actual byte array. 174655dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong std::string buf(valueLength, '\0'); 174755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong if ((valueLength = listxattr(path.c_str(), &buf[0], valueLength)) < 0) { 174855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong if (errno == ERANGE) { 174955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // The attribute value has changed since last listxattr call and buf no longer fits, 175055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // try again. 175155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong continue; 175255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 175355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong throwErrnoException(env, "listxattr"); 175455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong return NULL; 175555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 175655dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 175755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // Split the output by '\0'. 175855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong buf.resize(valueLength > 0 ? valueLength - 1 : 0); // Remove the trailing NULL character. 175955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong std::string delim("\0", 1); 176055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong auto xattrs = android::base::Split(buf, delim); 176155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 176255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong return toStringArray(env, xattrs); 176355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 176455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong} 176555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 17660965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jlong Linux_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 1767dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 17687e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 1769dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 1770dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 17710965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_lstat(JNIEnv* env, jobject, jstring javaPath) { 177247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 177347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 177447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 17750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 17760f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 17770f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 17780f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 17790f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 17800f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 17810f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 17820f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 17830f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 17840f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 17850965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 1786c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 1787c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 1788c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 1789c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 1790c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 1791c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 1792c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 17930965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_mkfifo(JNIEnv* env, jobject, jstring javaPath, jint mode) { 1794f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller ScopedUtfChars path(env, javaPath); 1795f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (path.c_str() == NULL) { 1796f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return; 1797f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } 1798f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwIfMinusOne(env, "mkfifo", TEMP_FAILURE_RETRY(mkfifo(path.c_str(), mode))); 1799f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller} 1800f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 18010965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 18027e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 18037e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 18047e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 18057e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 18060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jlong Linux_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 18077e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 18087e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 180913a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong void* ptr = mmap64(suggestedPtr, byteCount, prot, flags, fd, offset); 18107e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 18117e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 18127e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 18137e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 18147e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 18157e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 18160965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 18177e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 18187e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 18197e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 18207e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 18210965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 18227e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 18237e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 18247e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 18257e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 18260965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 18277e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 18287e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 18297e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 18307e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 18310965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 18320ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 18330ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 18340ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 18350ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 18360ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 18370ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 18380ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 18390ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 18400965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_pipe2(JNIEnv* env, jobject, jint flags __unused) { 184141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 184257a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak int pipe2_result = throwIfMinusOne(env, "pipe2", TEMP_FAILURE_RETRY(pipe2(&fds[0], flags))); 184357a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak if (pipe2_result == -1) { 184457a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak return NULL; 184557a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak } 184641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 184741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 184841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 184941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 185041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 185141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 185241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 185341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 185441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 185541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 185641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 185741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 185841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 185941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 186041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 186141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 186241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 18630965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { 186470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); 186570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); 186670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); 186770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 18685d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Turn the Java android.system.StructPollfd[] into a C++ struct pollfd[]. 186970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t arrayLength = env->GetArrayLength(javaStructs); 1870b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<struct pollfd[]> fds(new struct pollfd[arrayLength]); 187170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); 187270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) 187370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes for (size_t i = 0; i < arrayLength; ++i) { 187470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 187570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaStruct.get() == NULL) { 187670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We allow trailing nulls in the array for caller convenience. 187770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 187870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); 187970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaFd.get() == NULL) { 188070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We also allow callers to just clear the fd field (this is what Selector does). 188170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 188270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); 188370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); 188470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ++count; 188570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 188670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 1887f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller std::vector<AsynchronousCloseMonitor*> monitors; 1888796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < count; ++i) { 1889f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller monitors.push_back(new AsynchronousCloseMonitor(fds[i].fd)); 1890796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 1891fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1892fa542091e45db699a937c5ac0191194405107827Elliott Hughes int rc; 1893fa542091e45db699a937c5ac0191194405107827Elliott Hughes while (true) { 1894fa542091e45db699a937c5ac0191194405107827Elliott Hughes timespec before; 1895fa542091e45db699a937c5ac0191194405107827Elliott Hughes clock_gettime(CLOCK_MONOTONIC, &before); 1896fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1897fa542091e45db699a937c5ac0191194405107827Elliott Hughes rc = poll(fds.get(), count, timeoutMs); 1898fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (rc >= 0 || errno != EINTR) { 1899fa542091e45db699a937c5ac0191194405107827Elliott Hughes break; 1900fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1901fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1902fa542091e45db699a937c5ac0191194405107827Elliott Hughes // We got EINTR. Work out how much of the original timeout is still left. 1903fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (timeoutMs > 0) { 1904fa542091e45db699a937c5ac0191194405107827Elliott Hughes timespec now; 1905fa542091e45db699a937c5ac0191194405107827Elliott Hughes clock_gettime(CLOCK_MONOTONIC, &now); 1906fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1907fa542091e45db699a937c5ac0191194405107827Elliott Hughes timespec diff; 1908fa542091e45db699a937c5ac0191194405107827Elliott Hughes diff.tv_sec = now.tv_sec - before.tv_sec; 1909fa542091e45db699a937c5ac0191194405107827Elliott Hughes diff.tv_nsec = now.tv_nsec - before.tv_nsec; 1910fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (diff.tv_nsec < 0) { 1911fa542091e45db699a937c5ac0191194405107827Elliott Hughes --diff.tv_sec; 1912fa542091e45db699a937c5ac0191194405107827Elliott Hughes diff.tv_nsec += 1000000000; 1913fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1914fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1915fa542091e45db699a937c5ac0191194405107827Elliott Hughes jint diffMs = diff.tv_sec * 1000 + diff.tv_nsec / 1000000; 1916fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (diffMs >= timeoutMs) { 1917fa542091e45db699a937c5ac0191194405107827Elliott Hughes rc = 0; // We have less than 1ms left anyway, so just time out. 1918fa542091e45db699a937c5ac0191194405107827Elliott Hughes break; 1919fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1920fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1921fa542091e45db699a937c5ac0191194405107827Elliott Hughes timeoutMs -= diffMs; 1922fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1923fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1924fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1925796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < monitors.size(); ++i) { 1926796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes delete monitors[i]; 1927796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 192870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (rc == -1) { 192970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes throwErrnoException(env, "poll"); 193070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return -1; 193170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 193270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 19335d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Update the revents fields in the Java android.system.StructPollfd[]. 193498b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes for (size_t i = 0; i < count; ++i) { 193570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 193698b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes if (javaStruct.get() == NULL) { 193798b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes return -1; 193898b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes } 193970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); 194070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 194170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return rc; 194270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes} 194370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 19440965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_posix_fallocate(JNIEnv* env, jobject, jobject javaFd __unused, 19453deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jlong offset __unused, jlong length __unused) { 194611f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1947fa542091e45db699a937c5ac0191194405107827Elliott Hughes while ((errno = posix_fallocate64(fd, offset, length)) == EINTR) { 1948fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 194911f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes if (errno != 0) { 195011f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes throwErrnoException(env, "posix_fallocate"); 195111f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes } 195211f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes} 195311f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes 19540965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_prctl(JNIEnv* env, jobject, jint option __unused, jlong arg2 __unused, 19553deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jlong arg3 __unused, jlong arg4 __unused, jlong arg5 __unused) { 1956fa542091e45db699a937c5ac0191194405107827Elliott Hughes int result = TEMP_FAILURE_RETRY(prctl(static_cast<int>(option), 1957fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg2), 1958fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg3), 1959fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg4), 1960fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg5))); 19615215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich return throwIfMinusOne(env, "prctl", result); 19625215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich} 19635215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich 19640965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1965e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 1966e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1967e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1968e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1969f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pread64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1970e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1971e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 19720965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1973e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 1974e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1975e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1976e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1977f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pwrite64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1978e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1979e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 19800965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { 19810568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 198226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 198326c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 198426c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 1985f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, read, javaFd, bytes.get() + byteOffset, byteCount); 198626c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 198726c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 19880965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_readlink(JNIEnv* env, jobject, jstring javaPath) { 19890b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes ScopedUtfChars path(env, javaPath); 19900b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes if (path.c_str() == NULL) { 19910b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 19920b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 19930b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 19940b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes std::string result; 19952cb2851f4a528e3e6e3e59cf3e854c2abf9f1811Elliott Hughes if (!android::base::Readlink(path.c_str(), &result)) { 19960b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes throwErrnoException(env, "readlink"); 19970b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 19980b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 19990b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return env->NewStringUTF(result.c_str()); 20000b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes} 20010b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 20020965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_realpath(JNIEnv* env, jobject, jstring javaPath) { 20035d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath ScopedUtfChars path(env, javaPath); 20045d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath if (path.c_str() == NULL) { 20055d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath return NULL; 20065d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath } 20075d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath 20085d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath std::unique_ptr<char, c_deleter> real_path(realpath(path.c_str(), nullptr)); 20095d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath if (real_path.get() == nullptr) { 20105d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath throwErrnoException(env, "realpath"); 20115d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath return NULL; 20125d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath } 20135d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath 20145d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath return env->NewStringUTF(real_path.get()); 20155d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath} 20165d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath 20170965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 20188dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); 2019bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 2020bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 2021bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 2022f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, readv, javaFd, ioVec.get(), ioVec.size()); 2023bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 2024bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 20250965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) { 202623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 202723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes if (bytes.get() == NULL) { 202823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return -1; 202923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 203023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr_storage ss; 203123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t sl = sizeof(ss); 203223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes memset(&ss, 0, sizeof(ss)); 203323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 203423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0; 20351124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint recvCount = NET_FAILURE_RETRY(env, ssize_t, recvfrom, javaFd, bytes.get() + byteOffset, byteCount, flags, from, fromLength); 20366dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong if (recvCount >= 0) { 20376dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong // The socket may have performed orderly shutdown and recvCount would return 0 (see man 2 20386dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong // recvfrom), in which case ss.ss_family == AF_UNIX and fillInetSocketAddress would fail. 20396dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong // Don't fill in the address if recvfrom didn't succeed. http://b/33483694 20406dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong if (ss.ss_family == AF_INET || ss.ss_family == AF_INET6) { 20416dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong fillInetSocketAddress(env, javaInetSocketAddress, ss); 20426dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong } 20430ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 204423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvCount; 204523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes} 204623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes 20470965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_remove(JNIEnv* env, jobject, jstring javaPath) { 2048c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 2049c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 2050c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 2051c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 2052c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 2053c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 2054c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 20550965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_removexattr(JNIEnv* env, jobject, jstring javaPath, jstring javaName) { 205690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars path(env, javaPath); 205790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (path.c_str() == NULL) { 205890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 205990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 206090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars name(env, javaName); 206190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (name.c_str() == NULL) { 206290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 206390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 206490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey 206590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey int res = removexattr(path.c_str(), name.c_str()); 206690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (res < 0) { 206790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey throwErrnoException(env, "removexattr"); 206890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 206990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey} 207090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey 20710965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 2072a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 2073a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 2074a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 2075a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 2076a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 2077a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 2078a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 2079a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 2080a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 2081a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 2082a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 20830965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jlong Linux_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 20848b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 20858b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 20868b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 20878b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 20888b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 20898b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 2090e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer offset = env->GetLongField(javaOffset, int64RefValueFid); 20918b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 20928b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 20938b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 209457a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak if (result == -1) { 209557a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak return -1; 209657a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak } 20978b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 2098e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer env->SetLongField(javaOffset, int64RefValueFid, offset); 20998b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 21008b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 21018b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 21028b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 21030965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) { 210490d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes ScopedBytesRO bytes(env, javaBytes); 210590d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (bytes.get() == NULL) { 210690d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 210790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 2108b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 2109b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti return NET_IPV4_FALLBACK(env, ssize_t, sendto, javaFd, javaInetAddress, port, 2110b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti NULL_ADDR_OK, bytes.get() + byteOffset, byteCount, flags); 211190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes} 211290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes 21130965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_sendtoBytesSocketAddress(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaSocketAddress) { 2114f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { 2115f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti // Use the InetAddress version so we get the benefit of NET_IPV4_FALLBACK. 2116f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jobject javaInetAddress; 2117f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jint port; 2118f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port); 21190965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe return Linux_sendtoBytes(env, NULL, javaFd, javaBytes, byteOffset, byteCount, flags, 2120f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetAddress, port); 2121f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti } 2122f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti 2123a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti ScopedBytesRO bytes(env, javaBytes); 2124a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti if (bytes.get() == NULL) { 2125a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti return -1; 2126a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti } 2127a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti 2128a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti sockaddr_storage ss; 2129a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti socklen_t sa_len; 2130a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { 2131a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti return -1; 2132a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti } 2133a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti 2134a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 2135a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti // We don't need the return value because we'll already have thrown. 2136a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti return NET_FAILURE_RETRY(env, ssize_t, sendto, javaFd, bytes.get() + byteOffset, byteCount, flags, sa, sa_len); 2137a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti} 2138a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti 21390965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setegid(JNIEnv* env, jobject, jint egid) { 2140396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); 2141396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 2142396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 21430965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setenv(JNIEnv* env, jobject, jstring javaName, jstring javaValue, jboolean overwrite) { 2144895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 2145895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 2146895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 2147895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 2148895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars value(env, javaValue); 2149895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (value.c_str() == NULL) { 2150895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 2151895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 2152895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "setenv", setenv(name.c_str(), value.c_str(), overwrite)); 2153895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 2154895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 21550965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_seteuid(JNIEnv* env, jobject, jint euid) { 2156396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); 2157396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 2158396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 21590965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setgid(JNIEnv* env, jobject, jint gid) { 2160396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); 2161396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 2162396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 21630965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setpgid(JNIEnv* env, jobject, jint pid, int pgid) { 21648f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes throwIfMinusOne(env, "setpgid", TEMP_FAILURE_RETRY(setpgid(pid, pgid))); 21658f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 21668f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 21670965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setregid(JNIEnv* env, jobject, jint rgid, int egid) { 21688f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes throwIfMinusOne(env, "setregid", TEMP_FAILURE_RETRY(setregid(rgid, egid))); 21698f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 21708f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 21710965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setreuid(JNIEnv* env, jobject, jint ruid, int euid) { 21728f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes throwIfMinusOne(env, "setreuid", TEMP_FAILURE_RETRY(setreuid(ruid, euid))); 21738f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 21748f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 21750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_setsid(JNIEnv* env, jobject) { 21766c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes return throwIfMinusOne(env, "setsid", TEMP_FAILURE_RETRY(setsid())); 21776c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes} 21786c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes 21790965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 2180c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2181c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes u_char byte = value; 2182c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); 2183c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 2184c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 21850965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { 2186a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 2187a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 2188b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes return; 2189b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes } 2190b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2191b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 2192b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 2193b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 21940965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 2195454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2196454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 2197454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 2198454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 21990965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 2200b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes ip_mreqn req; 2201b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes memset(&req, 0, sizeof(req)); 2202b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes req.imr_ifindex = value; 2203b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2204b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 2205b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 2206b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 22070965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { 22088ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes struct group_req req; 22098ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memset(&req, 0, sizeof(req)); 2210438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 2211438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); 22128ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); 2213438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Get the IPv4 or IPv6 multicast address to join or leave. 2214438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); 2215e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); 2216482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 2217482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gr_group, sa_len)) { 2218438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes return; 2219438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 2220438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 2221438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 22228ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 2223438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (rc == -1 && errno == EINVAL) { 2224438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Maybe we're a 32-bit binary talking to a 64-bit kernel? 2225438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // glibc doesn't automatically handle this. 2226df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 22279634b569a92841f32268907c88c408f22cb00486Elliott Hughes struct group_req64 { 2228438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t gr_interface; 2229438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t my_padding; 2230438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes sockaddr_storage gr_group; 2231438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes }; 22328ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes group_req64 req64; 22338ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req64.gr_interface = req.gr_interface; 22348ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group)); 22358ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 2236438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 2237438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes throwIfMinusOne(env, "setsockopt", rc); 2238438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes} 2239df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 22400965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { 2241c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); 2242c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); 2243c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2244c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct linger value; 2245c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); 2246c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_linger = env->GetIntField(javaLinger, lLingerFid); 2247c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 2248c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 2249c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 22500965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { 2251c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); 2252c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); 2253c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2254c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct timeval value; 225539fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_sec = env->GetLongField(javaTimeval, tvSecFid); 225639fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid); 2257c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 2258c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 2259c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 22600965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setuid(JNIEnv* env, jobject, jint uid) { 2261396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); 2262396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 2263396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 22640965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setxattr(JNIEnv* env, jobject, jstring javaPath, jstring javaName, 226590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey jbyteArray javaValue, jint flags) { 226690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars path(env, javaPath); 226790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (path.c_str() == NULL) { 226890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 226990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 227090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars name(env, javaName); 227190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (name.c_str() == NULL) { 227290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 227390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 227490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedBytesRO value(env, javaValue); 227590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (value.get() == NULL) { 227690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 227790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 227890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey size_t valueLength = env->GetArrayLength(javaValue); 227990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey int res = setxattr(path.c_str(), name.c_str(), value.get(), valueLength, flags); 228090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (res < 0) { 228190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey throwErrnoException(env, "setxattr"); 228290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 228390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey} 228490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey 22850965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 228659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 228759e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 228859e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 228959e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 22900965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 229100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if (domain == AF_PACKET) { 229200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti protocol = htons(protocol); // Packet sockets specify the protocol in host byte order. 229300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 2294454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 2295454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 2296454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 2297454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 22980965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_socketpair(JNIEnv* env, jobject, jint domain, jint type, jint protocol, jobject javaFd1, jobject javaFd2) { 22993218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int fds[2]; 23003218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int rc = throwIfMinusOne(env, "socketpair", TEMP_FAILURE_RETRY(socketpair(domain, type, protocol, fds))); 23013218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes if (rc != -1) { 23023218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd1, fds[0]); 23033218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd2, fds[1]); 23043218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes } 23053218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes} 23063218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes 23075310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniakstatic jlong Linux_splice(JNIEnv* env, jobject, jobject javaFdIn, jobject javaOffIn, jobject javaFdOut, jobject javaOffOut, jlong len, jint flags) { 23085310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak int fdIn = jniGetFDFromFileDescriptor(env, javaFdIn); 23095310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak int fdOut = jniGetFDFromFileDescriptor(env, javaFdOut); 23105310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak int spliceErrno; 23115310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak 23125310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak jlong offIn = (javaOffIn == NULL ? 0 : env->GetLongField(javaOffIn, int64RefValueFid)); 23135310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak jlong offOut = (javaOffOut == NULL ? 0 : env->GetLongField(javaOffOut, int64RefValueFid)); 23145310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak jlong ret = -1; 23155310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak do { 23165310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak bool wasSignaled = false; 23175310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak { 23185310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak AsynchronousCloseMonitor monitorIn(fdIn); 23195310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak AsynchronousCloseMonitor monitorOut(fdOut); 23205310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak ret = splice(fdIn, (javaOffIn == NULL ? NULL : &offIn), 23215310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak fdOut, (javaOffOut == NULL ? NULL : &offOut), 23225310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak len, flags); 23235310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak spliceErrno = errno; 23245310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak wasSignaled = monitorIn.wasSignaled() || monitorOut.wasSignaled(); 23255310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak } 23265310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak if (wasSignaled) { 23275310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak jniThrowException(env, "java/io/InterruptedIOException", "splice interrupted"); 23285310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak ret = -1; 23295310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak break; 23305310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak } 23315310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak if (ret == -1 && spliceErrno != EINTR) { 23325310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak throwErrnoException(env, "splice"); 23335310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak break; 23345310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak } 23355310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak } while (ret == -1); 23365310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak if (ret == -1) { 23375310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak /* If the syscall failed, re-set errno: throwing an exception might have modified it. */ 23385310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak errno = spliceErrno; 23395310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak } else { 23405310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak if (javaOffIn != NULL) { 23415310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak env->SetLongField(javaOffIn, int64RefValueFid, offIn); 23425310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak } 23435310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak if (javaOffOut != NULL) { 23445310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak env->SetLongField(javaOffOut, int64RefValueFid, offOut); 23455310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak } 23465310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak } 23475310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak return ret; 23485310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak} 23495310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak 23505310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak 23510965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_stat(JNIEnv* env, jobject, jstring javaPath) { 235247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 235347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 235447cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 23550965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_statvfs(JNIEnv* env, jobject, jstring javaPath) { 235659fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 235759fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 235859fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 235959fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 2360721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 2361721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(statvfs(path.c_str(), &sb)); 236259fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 2363721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "statvfs"); 236459fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 236559fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 2366721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 236759fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 236859fa7163774d6930a174bc038414a4b780581957Elliott Hughes 23690965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_strerror(JNIEnv* env, jobject, jint errnum) { 237052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 2371ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 2372ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 2373ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 2374ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 23750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_strsignal(JNIEnv* env, jobject, jint signal) { 2376763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes return env->NewStringUTF(strsignal(signal)); 2377763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes} 2378763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes 23790965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 2380a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 2381a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 2382a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 2383a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 2384a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 2385a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 2386a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 2387a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 2388a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 2389a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 2390a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 23910965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jlong Linux_sysconf(JNIEnv* env, jobject, jint name) { 23926fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 23936fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 23946fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 23956fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 23967e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 23976fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 23986fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 23996fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 24006fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 24010965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_tcdrain(JNIEnv* env, jobject, jobject javaFd) { 2402bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig int fd = jniGetFDFromFileDescriptor(env, javaFd); 2403bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig throwIfMinusOne(env, "tcdrain", TEMP_FAILURE_RETRY(tcdrain(fd))); 2404bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig} 2405bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig 24060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_tcsendbreak(JNIEnv* env, jobject, jobject javaFd, jint duration) { 2407039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2408039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes throwIfMinusOne(env, "tcsendbreak", TEMP_FAILURE_RETRY(tcsendbreak(fd, duration))); 2409039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes} 2410039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes 24110965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_umaskImpl(JNIEnv*, jobject, jint mask) { 241244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return umask(mask); 241344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 241444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 24150965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_uname(JNIEnv* env, jobject) { 24167341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 24179b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) { 24189b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes return NULL; // Can't happen. 24197341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 24207341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 24217341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 24227341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 24230965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_unlink(JNIEnv* env, jobject, jstring javaPathname) { 24245e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller ScopedUtfChars pathname(env, javaPathname); 24255e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller if (pathname.c_str() == NULL) { 24265e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller return; 24275e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller } 24285e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller throwIfMinusOne(env, "unlink", unlink(pathname.c_str())); 24295e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller} 24305e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller 24310965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_unsetenv(JNIEnv* env, jobject, jstring javaName) { 2432895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 2433895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 2434895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 2435895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 2436895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "unsetenv", unsetenv(name.c_str())); 2437895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 2438895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 24390965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) { 24409e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int status; 24419e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options))); 244250e20daf19d19acd61bb2ac0fddf4be09814defbTobias Thierer if (javaStatus != NULL && rc != -1) { 2443e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer env->SetIntField(javaStatus, int32RefValueFid, status); 24449e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes } 24459e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes return rc; 24469e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes} 24479e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes 24480965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 24490568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 245078c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 245178c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 245278c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 2453f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, write, javaFd, bytes.get() + byteOffset, byteCount); 245478c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 245578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 24560965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 24578dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); 2458bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 2459bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 2460bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 2461f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, writev, javaFd, ioVec.get(), ioVec.size()); 2462bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 2463bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 24648f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline#define NATIVE_METHOD_OVERLOAD(className, functionName, signature, variant) \ 24658f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline { #functionName, signature, reinterpret_cast<void*>(className ## _ ## functionName ## variant) } 24668f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 2467ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 24680965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, accept, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)Ljava/io/FileDescriptor;"), 24690965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, access, "(Ljava/lang/String;I)Z"), 24700965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, android_getaddrinfo, "(Ljava/lang/String;Landroid/system/StructAddrinfo;I)[Ljava/net/InetAddress;"), 24710965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 24720965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD_OVERLOAD(Linux, bind, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress), 24735744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe NATIVE_METHOD(Linux, capget, 24745744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe "(Landroid/system/StructCapUserHeader;)[Landroid/system/StructCapUserData;"), 24755744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe NATIVE_METHOD(Linux, capset, 24765744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe "(Landroid/system/StructCapUserHeader;[Landroid/system/StructCapUserData;)V"), 24770965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, chmod, "(Ljava/lang/String;I)V"), 24780965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, chown, "(Ljava/lang/String;II)V"), 24790965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, close, "(Ljava/io/FileDescriptor;)V"), 24800965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 24810965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD_OVERLOAD(Linux, connect, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress), 24820965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), 24830965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), 24840965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, environ, "()[Ljava/lang/String;"), 24850965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, execv, "(Ljava/lang/String;[Ljava/lang/String;)V"), 24860965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, execve, "(Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;)V"), 24870965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fchmod, "(Ljava/io/FileDescriptor;I)V"), 24880965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fchown, "(Ljava/io/FileDescriptor;II)V"), 24890965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fcntlFlock, "(Ljava/io/FileDescriptor;ILandroid/system/StructFlock;)I"), 24900965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fcntlInt, "(Ljava/io/FileDescriptor;II)I"), 24910965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 24920965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fdatasync, "(Ljava/io/FileDescriptor;)V"), 24930965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fstat, "(Ljava/io/FileDescriptor;)Landroid/system/StructStat;"), 24940965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fstatvfs, "(Ljava/io/FileDescriptor;)Landroid/system/StructStatVfs;"), 24950965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fsync, "(Ljava/io/FileDescriptor;)V"), 24960965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 24970965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, gai_strerror, "(I)Ljava/lang/String;"), 24980965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getegid, "()I"), 24990965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, geteuid, "()I"), 25000965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getgid, "()I"), 25010965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 25020965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), 25030965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpeername, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 25040965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpgid, "(I)I"), 25050965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpid, "()I"), 25060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getppid, "()I"), 25070965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpwnam, "(Ljava/lang/String;)Landroid/system/StructPasswd;"), 25080965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpwuid, "(I)Landroid/system/StructPasswd;"), 2509e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath NATIVE_METHOD(Linux, getrlimit, "(I)Landroid/system/StructRlimit;"), 25100965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 25110965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), 25120965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), 25130965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), 25140965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Landroid/system/StructLinger;"), 25150965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Landroid/system/StructTimeval;"), 25160965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptUcred, "(Ljava/io/FileDescriptor;II)Landroid/system/StructUcred;"), 25170965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, gettid, "()I"), 25180965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getuid, "()I"), 25190965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getxattr, "(Ljava/lang/String;Ljava/lang/String;)[B"), 25200965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getifaddrs, "()[Landroid/system/StructIfaddrs;"), 25210965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, if_indextoname, "(I)Ljava/lang/String;"), 25220965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, if_nametoindex, "(Ljava/lang/String;)I"), 25230965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"), 25240965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, ioctlFlags, "(Ljava/io/FileDescriptor;Ljava/lang/String;)I"), 25250965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), 2526e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer NATIVE_METHOD(Linux, ioctlInt, "(Ljava/io/FileDescriptor;ILandroid/system/Int32Ref;)I"), 25270965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, ioctlMTU, "(Ljava/io/FileDescriptor;Ljava/lang/String;)I"), 25280965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, isatty, "(Ljava/io/FileDescriptor;)Z"), 25290965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, kill, "(II)V"), 25300965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, lchown, "(Ljava/lang/String;II)V"), 25310965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, link, "(Ljava/lang/String;Ljava/lang/String;)V"), 25320965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, listen, "(Ljava/io/FileDescriptor;I)V"), 25330965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, listxattr, "(Ljava/lang/String;)[Ljava/lang/String;"), 25340965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, lseek, "(Ljava/io/FileDescriptor;JI)J"), 25350965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, lstat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 25360965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mincore, "(JJ[B)V"), 25370965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mkdir, "(Ljava/lang/String;I)V"), 25380965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mkfifo, "(Ljava/lang/String;I)V"), 25390965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mlock, "(JJ)V"), 25400965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 25410965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, msync, "(JJI)V"), 25420965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, munlock, "(JJ)V"), 25430965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, munmap, "(JJ)V"), 25440965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 25450965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, pipe2, "(I)[Ljava/io/FileDescriptor;"), 25460965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, poll, "([Landroid/system/StructPollfd;I)I"), 25470965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, posix_fallocate, "(Ljava/io/FileDescriptor;JJ)V"), 25480965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, prctl, "(IJJJJ)I"), 25490965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 25500965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 25510965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 25520965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, readlink, "(Ljava/lang/String;)Ljava/lang/String;"), 25530965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, realpath, "(Ljava/lang/String;)Ljava/lang/String;"), 25540965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 25550965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"), 25560965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, remove, "(Ljava/lang/String;)V"), 25570965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, removexattr, "(Ljava/lang/String;Ljava/lang/String;)V"), 25580965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 2559e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer NATIVE_METHOD(Linux, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Landroid/system/Int64Ref;J)J"), 25600965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"), 25610965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD_OVERLOAD(Linux, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/SocketAddress;)I", SocketAddress), 25620965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setegid, "(I)V"), 25630965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setenv, "(Ljava/lang/String;Ljava/lang/String;Z)V"), 25640965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, seteuid, "(I)V"), 25650965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setgid, "(I)V"), 25660965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setpgid, "(II)V"), 25670965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setregid, "(II)V"), 25680965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setreuid, "(II)V"), 25690965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsid, "()I"), 25700965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), 25710965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), 25720965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 25730965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), 25740965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupReq;)V"), 25750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptLinger, "(Ljava/io/FileDescriptor;IILandroid/system/StructLinger;)V"), 25760965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILandroid/system/StructTimeval;)V"), 25770965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setuid, "(I)V"), 25780965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setxattr, "(Ljava/lang/String;Ljava/lang/String;[BI)V"), 25790965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, shutdown, "(Ljava/io/FileDescriptor;I)V"), 25800965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, socket, "(III)Ljava/io/FileDescriptor;"), 25810965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, socketpair, "(IIILjava/io/FileDescriptor;Ljava/io/FileDescriptor;)V"), 25825310ea4af51082e4a775d31615daaa59754d003ePrzemyslaw Szczepaniak NATIVE_METHOD(Linux, splice, "(Ljava/io/FileDescriptor;Landroid/system/Int64Ref;Ljava/io/FileDescriptor;Landroid/system/Int64Ref;JI)J"), 25830965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, stat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 25840965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, statvfs, "(Ljava/lang/String;)Landroid/system/StructStatVfs;"), 25850965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, strerror, "(I)Ljava/lang/String;"), 25860965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, strsignal, "(I)Ljava/lang/String;"), 25870965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 25880965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, sysconf, "(I)J"), 25890965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, tcdrain, "(Ljava/io/FileDescriptor;)V"), 25900965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, tcsendbreak, "(Ljava/io/FileDescriptor;I)V"), 25910965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, umaskImpl, "(I)I"), 25920965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, uname, "()Landroid/system/StructUtsname;"), 25930965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, unlink, "(Ljava/lang/String;)V"), 25940965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, unsetenv, "(Ljava/lang/String;)V"), 2595e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer NATIVE_METHOD(Linux, waitpid, "(ILandroid/system/Int32Ref;I)I"), 25960965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 25970965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 2598ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 25990965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampevoid register_libcore_io_Linux(JNIEnv* env) { 26002c549f1ba3fb683ab1c4ede75bdcb312e8769672Andreas Gampe // Note: it is safe to only cache the fields as boot classpath classes are never 26012c549f1ba3fb683ab1c4ede75bdcb312e8769672Andreas Gampe // unloaded. 2602e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer ScopedLocalRef<jclass> int32RefClass(env, env->FindClass("android/system/Int32Ref")); 2603e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer CHECK(int32RefClass != nullptr); 2604e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer int32RefValueFid = env->GetFieldID(int32RefClass.get(), "value", "I"); 2605e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer CHECK(int32RefValueFid != nullptr); 2606e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer 2607e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer ScopedLocalRef<jclass> int64RefClass(env, env->FindClass("android/system/Int64Ref")); 2608e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer CHECK(int64RefClass != nullptr); 2609e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer int64RefValueFid = env->GetFieldID(int64RefClass.get(), "value", "J"); 2610e3a3a06a94a50d31b7033e496f23becb0f1329c7Tobias Thierer CHECK(int64RefValueFid != nullptr); 26112c549f1ba3fb683ab1c4ede75bdcb312e8769672Andreas Gampe 26120965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe jniRegisterNativeMethods(env, "libcore/io/Linux", gMethods, NELEM(gMethods)); 2613ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 2614