libcore_io_Linux.cpp revision 57a65ad7f0be5b9d0364d36208752f66e9f13596
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> 5355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong#include <android-base/strings.h> 54d3a88f94be9fb4d0a6da32cf3a820e5b206ded4aMark Salyzyn#include <log/log.h> 55cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/AsynchronousCloseMonitor.h> 56cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/JNIHelp.h> 57cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/JniConstants.h> 58cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/ScopedBytes.h> 59cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/ScopedLocalRef.h> 60cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/ScopedPrimitiveArray.h> 61cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/ScopedUtfChars.h> 62cab01ac294bb8ded259851673baa4c6ca226f828Steven Moreland#include <nativehelper/toStringArray.h> 632cb2851f4a528e3e6e3e59cf3e854c2abf9f1811Elliott Hughes 646d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "ExecStrings.h" 656d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "JniException.h" 666d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "NetworkUtilities.h" 676d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn#include "Portability.h" 686d8d1ea910c1ad026b48c87424da92a250664dd2Mark Salyzyn 69efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#ifndef __unused 7037dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers#define __unused __attribute__((__unused__)) 71efae3837b3eb79dea3400735fdcdd5a39020e0b0Ian Rogers#endif 7237dd0ac5767197bf7e3e90f1a5d4e54c8f1fe93dIan Rogers 73d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes#define TO_JAVA_STRING(NAME, EXP) \ 74d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jstring NAME = env->NewStringUTF(EXP); \ 75a0b3a2c22454fad9026cff3b0173ada828bad280Chih-Hung Hsieh if ((NAME) == NULL) return NULL; 76d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 771c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughesstruct addrinfo_deleter { 781c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes void operator()(addrinfo* p) const { 791c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (p != NULL) { // bionic's freeaddrinfo(3) crashes when passed NULL. 801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes freeaddrinfo(p); 811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 821c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 831c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes}; 841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 855d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamathstruct c_deleter { 865d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath void operator()(void* p) const { 875d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath free(p); 885d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath } 895d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath}; 905d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath 91b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colittistatic bool isIPv4MappedAddress(const sockaddr *sa) { 92b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti const sockaddr_in6 *sin6 = reinterpret_cast<const sockaddr_in6*>(sa); 93b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti return sa != NULL && sa->sa_family == AF_INET6 && 94b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti (IN6_IS_ADDR_V4MAPPED(&sin6->sin6_addr) || 95b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti IN6_IS_ADDR_UNSPECIFIED(&sin6->sin6_addr)); // We map 0.0.0.0 to ::, so :: is mapped. 96b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti} 97b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 98b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti/** 99b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * Perform a socket operation that specifies an IP address, possibly falling back from specifying 100b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * the address as an IPv4-mapped IPv6 address in a struct sockaddr_in6 to specifying it as an IPv4 101b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * address in a struct sockaddr_in. 102b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * 103b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * This is needed because all sockets created by the java.net APIs are IPv6 sockets, and on those 104b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * sockets, IPv4 operations use IPv4-mapped addresses stored in a struct sockaddr_in6. But sockets 1050965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe * created using Linux.socket(AF_INET, ...) are IPv4 sockets and only support operations using IPv4 106b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * socket addresses structures. 107b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti */ 108b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NET_IPV4_FALLBACK(jni_env, return_type, syscall_name, java_fd, java_addr, port, null_addr_ok, args...) ({ \ 109b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti return_type _rc = -1; \ 110b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti do { \ 111b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti sockaddr_storage _ss; \ 112b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti socklen_t _salen; \ 113a0b3a2c22454fad9026cff3b0173ada828bad280Chih-Hung Hsieh if ((java_addr) == NULL && (null_addr_ok)) { \ 114b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* No IP address specified (e.g., sendto() on a connected socket). */ \ 115b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _salen = 0; \ 116b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } else if (!inetAddressToSockaddr(jni_env, java_addr, port, _ss, _salen)) { \ 117b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* Invalid socket address, return -1. inetAddressToSockaddr has already thrown. */ \ 118b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti break; \ 119b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } \ 120b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti sockaddr* _sa = _salen ? reinterpret_cast<sockaddr*>(&_ss) : NULL; \ 121b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* inetAddressToSockaddr always returns an IPv6 sockaddr. Assume that java_fd was created \ 122b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * by Java API calls, which always create IPv6 socket fds, and pass it in as is. */ \ 123b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \ 124b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti if (_rc == -1 && errno == EAFNOSUPPORT && _salen && isIPv4MappedAddress(_sa)) { \ 125b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti /* We passed in an IPv4 address in an IPv6 sockaddr and the kernel told us that we got \ 126b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti * the address family wrong. Pass in the same address in an IPv4 sockaddr. */ \ 127a0b3a2c22454fad9026cff3b0173ada828bad280Chih-Hung Hsieh (jni_env)->ExceptionClear(); \ 128b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti if (!inetAddressToSockaddrVerbatim(jni_env, java_addr, port, _ss, _salen)) { \ 129b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti break; \ 130b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } \ 131b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _sa = reinterpret_cast<sockaddr*>(&_ss); \ 132b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _rc = NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ##args, _sa, _salen); \ 133b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } \ 134b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti } while (0); \ 135b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti _rc; }) \ 136b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 137996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes/** 138f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry networking system calls that can be interrupted with a signal. Unlike 139f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * TEMP_FAILURE_RETRY, this also handles the case where 140f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal a close() or 141f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Thread.interrupt(). Other signals that result in an EINTR result are ignored and the system call 142f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * is retried. 143996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes * 144f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 145f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: a SocketException if signaled via AsynchronousCloseMonitor, or ErrnoException for other 146f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * failures. 147996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes */ 1481124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes#define NET_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 1491124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes return_type _rc = -1; \ 150b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti int _syscallErrno; \ 151996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes do { \ 152f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller bool _wasSignaled; \ 153996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes { \ 1541124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 155f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 1561124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes _rc = syscall_name(_fd, __VA_ARGS__); \ 157f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _syscallErrno = errno; \ 158f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 159996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes } \ 160f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_wasSignaled) { \ 161f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller jniThrowException(jni_env, "java/net/SocketException", "Socket closed"); \ 1625d7c0a378be3f7f505b30e634e7aabf072c4edd0Serguei Katkov _rc = -1; \ 163f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 164f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 165f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 166f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 167f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwErrnoException(jni_env, # syscall_name); \ 168f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller break; \ 169f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } \ 170f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } while (_rc == -1); /* _syscallErrno == EINTR && !_wasSignaled */ \ 171b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti if (_rc == -1) { \ 172b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti /* If the syscall failed, re-set errno: throwing an exception might have modified it. */ \ 173b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti errno = _syscallErrno; \ 174b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti } \ 175f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller _rc; }) 176f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 177f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller/** 178f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Used to retry system calls that can be interrupted with a signal. Unlike TEMP_FAILURE_RETRY, this 179f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * also handles the case where AsynchronousCloseMonitor::signalBlockedThreads(fd) is used to signal 180f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * a close() or Thread.interrupt(). Other signals that result in an EINTR result are ignored and the 181f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * system call is retried. 182f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * 183f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * Returns the result of the system call though a Java exception will be pending if the result is 184f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * -1: an IOException if the file descriptor is already closed, a InterruptedIOException if signaled 185f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller * via AsynchronousCloseMonitor, or ErrnoException for other failures. 186f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller */ 187f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller#define IO_FAILURE_RETRY(jni_env, return_type, syscall_name, java_fd, ...) ({ \ 188f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return_type _rc = -1; \ 189b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti int _syscallErrno; \ 19099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller do { \ 19199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller bool _wasSignaled; \ 19299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller { \ 19399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller int _fd = jniGetFDFromFileDescriptor(jni_env, java_fd); \ 19499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller AsynchronousCloseMonitor _monitor(_fd); \ 19599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _rc = syscall_name(_fd, __VA_ARGS__); \ 19699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _syscallErrno = errno; \ 19799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _wasSignaled = _monitor.wasSignaled(); \ 19899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 19999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller if (_wasSignaled) { \ 20099a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller jniThrowException(jni_env, "java/io/InterruptedIOException", # syscall_name " interrupted"); \ 20199a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller _rc = -1; \ 20299a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller break; \ 20399a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 20499a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller if (_rc == -1 && _syscallErrno != EINTR) { \ 20599a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller /* TODO: with a format string we could show the arguments too, like strace(1). */ \ 20699a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller throwErrnoException(jni_env, # syscall_name); \ 20799a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller break; \ 20899a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } \ 20999a0c82619a88c6aea038757cf14090f5d33afebNeil Fuller } while (_rc == -1); /* && _syscallErrno == EINTR && !_wasSignaled */ \ 210b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti if (_rc == -1) { \ 211b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti /* If the syscall failed, re-set errno: throwing an exception might have modified it. */ \ 212b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti errno = _syscallErrno; \ 213b4af0b52e1190846edde87f352ca722a7d9e0259Lorenzo Colitti } \ 214996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes _rc; }) 215996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 216b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NULL_ADDR_OK true 217b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti#define NULL_ADDR_FORBIDDEN false 218b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 2194f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwException(JNIEnv* env, jclass exceptionClass, jmethodID ctor3, jmethodID ctor2, 2204f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes const char* functionName, int error) { 221ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jthrowable cause = NULL; 222ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (env->ExceptionCheck()) { 223ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes cause = env->ExceptionOccurred(); 224ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->ExceptionClear(); 225ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 226ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 2274f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes ScopedLocalRef<jstring> detailMessage(env, env->NewStringUTF(functionName)); 2284f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (detailMessage.get() == NULL) { 229f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // Not really much we can do here. We're probably dead in the water, 230f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes // but let's try to stumble on... 231f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes env->ExceptionClear(); 232f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes } 233f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 234ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes jobject exception; 235ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (cause != NULL) { 2364f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor3, detailMessage.get(), error, cause); 237ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } else { 2384f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes exception = env->NewObject(exceptionClass, ctor2, detailMessage.get(), error); 239ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 240ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes env->Throw(reinterpret_cast<jthrowable>(exception)); 241dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 242dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 2434f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwErrnoException(JNIEnv* env, const char* functionName) { 2444f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes int error = errno; 2454f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::errnoExceptionClass, 2464f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 2474f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::errnoExceptionClass, 2484f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes "<init>", "(Ljava/lang/String;I)V"); 2494f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::errnoExceptionClass, ctor3, ctor2, functionName, error); 2504f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 2514f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 2524f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughesstatic void throwGaiException(JNIEnv* env, const char* functionName, int error) { 253c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes // Cache the methods ids before we throw, so we don't call GetMethodID with a pending exception. 254c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor3 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 255c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;ILjava/lang/Throwable;)V"); 256c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes static jmethodID ctor2 = env->GetMethodID(JniConstants::gaiExceptionClass, "<init>", 257c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes "(Ljava/lang/String;I)V"); 258c1cee0db58ec7bc61d5caac79915d744862cbe75Elliott Hughes if (errno != 0) { 25975cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // EAI_SYSTEM should mean "look at errno instead", but both glibc and bionic seem to 26075cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // mess this up. In particular, if you don't have INTERNET permission, errno will be EACCES 26175cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // but you'll get EAI_NONAME or EAI_NODATA. So we want our GaiException to have a 26275cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // potentially-relevant ErrnoException as its cause even if error != EAI_SYSTEM. 26375cf14944d476670f6f915e5efd849e238a16250Elliott Hughes // http://code.google.com/p/android/issues/detail?id=15722 2644f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwErrnoException(env, functionName); 2654f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes // Deliberately fall through to throw another exception... 2664f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 2674f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwException(env, JniConstants::gaiExceptionClass, ctor3, ctor2, functionName, error); 2684f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 2694f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 270dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughestemplate <typename rc_t> 2717e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughesstatic rc_t throwIfMinusOne(JNIEnv* env, const char* name, rc_t rc) { 272dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == rc_t(-1)) { 2737e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, name); 274dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 275dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes return rc; 27647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 27747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 2788dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughestemplate <typename ScopedT> 279bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesclass IoVec { 280bbac92e691de7d570928ddfba639067978e55b06Elliott Hughespublic: 281bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes IoVec(JNIEnv* env, size_t bufferCount) : mEnv(env), mBufferCount(bufferCount) { 282bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 283bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 284bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes bool init(jobjectArray javaBuffers, jintArray javaOffsets, jintArray javaByteCounts) { 285bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // We can't delete our local references until after the I/O, so make sure we have room. 286bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (mEnv->PushLocalFrame(mBufferCount + 16) < 0) { 287bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 288bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 289bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO offsets(mEnv, javaOffsets); 290bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (offsets.get() == NULL) { 291bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 292bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 293bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ScopedIntArrayRO byteCounts(mEnv, javaByteCounts); 294bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (byteCounts.get() == NULL) { 295bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 296bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 297bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes // TODO: Linux actually has a 1024 buffer limit. glibc works around this, and we should too. 298d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes // TODO: you can query the limit at runtime with sysconf(_SC_IOV_MAX). 299bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes for (size_t i = 0; i < mBufferCount; ++i) { 300e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes jobject buffer = mEnv->GetObjectArrayElement(javaBuffers, i); // We keep this local ref. 3018dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes mScopedBuffers.push_back(new ScopedT(mEnv, buffer)); 3028dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes jbyte* ptr = const_cast<jbyte*>(mScopedBuffers.back()->get()); 303bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (ptr == NULL) { 304bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return false; 305bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 306bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes struct iovec iov; 307bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_base = reinterpret_cast<void*>(ptr + offsets[i]); 308bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iov.iov_len = byteCounts[i]; 309bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mIoVec.push_back(iov); 310bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 311bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return true; 312bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 313bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 314bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes ~IoVec() { 3158dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes for (size_t i = 0; i < mScopedBuffers.size(); ++i) { 3168dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes delete mScopedBuffers[i]; 317bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 318bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes mEnv->PopLocalFrame(NULL); 319bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 320bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 321bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes iovec* get() { 322bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return &mIoVec[0]; 323bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 324bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 325bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t size() { 326bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return mBufferCount; 327bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 328bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 329bbac92e691de7d570928ddfba639067978e55b06Elliott Hughesprivate: 330bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes JNIEnv* mEnv; 331bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes size_t mBufferCount; 332bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes std::vector<iovec> mIoVec; 3338dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes std::vector<ScopedT*> mScopedBuffers; 334bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes}; 335bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 3360ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller/** 3372550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * Returns a jbyteArray containing the sockaddr_un.sun_path from ss. As per unix(7) sa_len should be 3382550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * the length of ss as returned by getsockname(2), getpeername(2), or accept(2). 3392550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * If the returned array is of length 0 the sockaddr_un refers to an unnamed socket. 3402550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller * A null pointer is returned in the event of an error. See unix(7) for more information. 3410ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller */ 3422550a252387631b49a00d2ee5587717cd2a6dda3Neil Fullerstatic jbyteArray getUnixSocketPath(JNIEnv* env, const sockaddr_storage& ss, 3432550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller const socklen_t& sa_len) { 3440ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (ss.ss_family != AF_UNIX) { 3450ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", 3460ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller "getUnixSocketPath unsupported ss_family: %i", ss.ss_family); 3472550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return NULL; 3480ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 3492550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller 3500ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller const struct sockaddr_un* un_addr = reinterpret_cast<const struct sockaddr_un*>(&ss); 3512550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // The length of sun_path is sa_len minus the length of the overhead (ss_family). 3522550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // See unix(7) for details. This calculation must match that of socket_make_sockaddr_un() in 3532550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // socket_local_client.c and javaUnixSocketAddressToSockaddr() to interoperate. 3542550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller size_t pathLength = sa_len - offsetof(struct sockaddr_un, sun_path); 3552550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller 3562550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller jbyteArray javaSunPath = env->NewByteArray(pathLength); 3572550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if (javaSunPath == NULL) { 3582550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return NULL; 3590ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 3602550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller 3612550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if (pathLength > 0) { 3622550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller env->SetByteArrayRegion(javaSunPath, 0, pathLength, 3632550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller reinterpret_cast<const jbyte*>(&un_addr->sun_path)); 3642550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller } 3652550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return javaSunPath; 3660ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller} 3670ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 3680ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic jobject makeSocketAddress(JNIEnv* env, const sockaddr_storage& ss, const socklen_t sa_len) { 3690ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (ss.ss_family == AF_INET || ss.ss_family == AF_INET6) { 3708f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jint port; 3718f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jobject inetAddress = sockaddrToInetAddress(env, ss, &port); 3728f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (inetAddress == NULL) { 3738f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return NULL; // Exception already thrown. 3748f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 3758f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jmethodID ctor = env->GetMethodID(JniConstants::inetSocketAddressClass, 3768f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline "<init>", "(Ljava/net/InetAddress;I)V"); 3778f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return env->NewObject(JniConstants::inetSocketAddressClass, ctor, inetAddress, port); 3780ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } else if (ss.ss_family == AF_UNIX) { 3790ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller static jmethodID ctor = env->GetMethodID(JniConstants::unixSocketAddressClass, 3800ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller "<init>", "([B)V"); 3810ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 3822550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller jbyteArray javaSunPath = getUnixSocketPath(env, ss, sa_len); 3832550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if (!javaSunPath) { 3840ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return NULL; 3850ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 3862550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return env->NewObject(JniConstants::unixSocketAddressClass, ctor, javaSunPath); 3878f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } else if (ss.ss_family == AF_NETLINK) { 3888f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline const struct sockaddr_nl* nl_addr = reinterpret_cast<const struct sockaddr_nl*>(&ss); 3898f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jmethodID ctor = env->GetMethodID(JniConstants::netlinkSocketAddressClass, 3908f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline "<init>", "(II)V"); 3916e888e9390649a9ab2557da5b28bb75be39e1b74Przemyslaw Szczepaniak return env->NewObject(JniConstants::netlinkSocketAddressClass, ctor, 3926e888e9390649a9ab2557da5b28bb75be39e1b74Przemyslaw Szczepaniak static_cast<jint>(nl_addr->nl_pid), 3938f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static_cast<jint>(nl_addr->nl_groups)); 39400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } else if (ss.ss_family == AF_PACKET) { 39500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti const struct sockaddr_ll* sll = reinterpret_cast<const struct sockaddr_ll*>(&ss); 39600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jmethodID ctor = env->GetMethodID(JniConstants::packetSocketAddressClass, 39700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti "<init>", "(SISB[B)V"); 39800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti ScopedLocalRef<jbyteArray> byteArray(env, env->NewByteArray(sll->sll_halen)); 39900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if (byteArray.get() == NULL) { 40000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return NULL; 40100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 40200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti env->SetByteArrayRegion(byteArray.get(), 0, sll->sll_halen, 40300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti reinterpret_cast<const jbyte*>(sll->sll_addr)); 40400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jobject packetSocketAddress = env->NewObject(JniConstants::packetSocketAddressClass, ctor, 40500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jshort>(ntohs(sll->sll_protocol)), 40600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jint>(sll->sll_ifindex), 40700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jshort>(sll->sll_hatype), 40800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static_cast<jbyte>(sll->sll_pkttype), 40900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti byteArray.get()); 41000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return packetSocketAddress; 41100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 41200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", "unsupported ss_family: %d", 41300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti ss.ss_family); 4148f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return NULL; 4150a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 4160a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 417d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesstatic jobject makeStructPasswd(JNIEnv* env, const struct passwd& pw) { 418d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_name, pw.pw_name); 419d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_dir, pw.pw_dir); 420d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(pw_shell, pw.pw_shell); 421d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structPasswdClass, "<init>", 422d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes "(Ljava/lang/String;IILjava/lang/String;Ljava/lang/String;)V"); 423d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return env->NewObject(JniConstants::structPasswdClass, ctor, 424d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes pw_name, static_cast<jint>(pw.pw_uid), static_cast<jint>(pw.pw_gid), pw_dir, pw_shell); 425d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 426d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 427108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniakstatic jobject makeStructTimespec(JNIEnv* env, const struct timespec& ts) { 428108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak static jmethodID ctor = env->GetMethodID(JniConstants::structTimespecClass, "<init>", 429108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak "(JJ)V"); 430108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak return env->NewObject(JniConstants::structTimespecClass, ctor, 431108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak static_cast<jlong>(ts.tv_sec), static_cast<jlong>(ts.tv_nsec)); 432108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak} 433108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak 43413a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kongstatic jobject makeStructStat(JNIEnv* env, const struct stat64& sb) { 43547cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatClass, "<init>", 436108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak "(JJIJIIJJLandroid/system/StructTimespec;Landroid/system/StructTimespec;Landroid/system/StructTimespec;JJ)V"); 43747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return env->NewObject(JniConstants::structStatClass, ctor, 43859fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_dev), static_cast<jlong>(sb.st_ino), 43959fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_mode), static_cast<jlong>(sb.st_nlink), 44059fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jint>(sb.st_uid), static_cast<jint>(sb.st_gid), 44159fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_rdev), static_cast<jlong>(sb.st_size), 442108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak makeStructTimespec(env, sb.st_atim), makeStructTimespec(env, sb.st_mtim), 443108091b6787f37a23862c7c9bb965ccf932430abPrzemyslaw Szczepaniak makeStructTimespec(env, sb.st_ctim), static_cast<jlong>(sb.st_blksize), 44459fa7163774d6930a174bc038414a4b780581957Elliott Hughes static_cast<jlong>(sb.st_blocks)); 44559fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 44659fa7163774d6930a174bc038414a4b780581957Elliott Hughes 447721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughesstatic jobject makeStructStatVfs(JNIEnv* env, const struct statvfs& sb) { 448721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structStatVfsClass, "<init>", 449721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes "(JJJJJJJJJJJ)V"); 450721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return env->NewObject(JniConstants::structStatVfsClass, ctor, 451721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bsize), 452721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_frsize), 453721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_blocks), 454721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bfree), 455721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_bavail), 456721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_files), 457721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_ffree), 458721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_favail), 459721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_fsid), 460721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes static_cast<jlong>(sb.f_flag), 461efe42934a8523f2b051a351e5eceebf6216454aeElliott Hughes static_cast<jlong>(sb.f_namemax)); 46247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 46347cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 4640a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructLinger(JNIEnv* env, const struct linger& l) { 4650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structLingerClass, "<init>", "(II)V"); 4660a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structLingerClass, ctor, l.l_onoff, l.l_linger); 4670a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 4680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 4690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughesstatic jobject makeStructTimeval(JNIEnv* env, const struct timeval& tv) { 4700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structTimevalClass, "<init>", "(JJ)V"); 4710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return env->NewObject(JniConstants::structTimevalClass, ctor, 4720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes static_cast<jlong>(tv.tv_sec), static_cast<jlong>(tv.tv_usec)); 4730a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 4740a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 4753deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogersstatic jobject makeStructUcred(JNIEnv* env, const struct ucred& u __unused) { 476482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUcredClass, "<init>", "(III)V"); 477482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return env->NewObject(JniConstants::structUcredClass, ctor, u.pid, u.uid, u.gid); 478482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 479482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 4807341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughesstatic jobject makeStructUtsname(JNIEnv* env, const struct utsname& buf) { 481d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(sysname, buf.sysname); 482d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(nodename, buf.nodename); 483d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(release, buf.release); 484d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(version, buf.version); 485d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes TO_JAVA_STRING(machine, buf.machine); 4867341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes static jmethodID ctor = env->GetMethodID(JniConstants::structUtsnameClass, "<init>", 4877341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes "(Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)V"); 4887341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return env->NewObject(JniConstants::structUtsnameClass, ctor, 4897341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes sysname, nodename, release, version, machine); 4907341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes}; 4917341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 492a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughesstatic bool fillIfreq(JNIEnv* env, jstring javaInterfaceName, struct ifreq& req) { 493a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes ScopedUtfChars interfaceName(env, javaInterfaceName); 494a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (interfaceName.c_str() == NULL) { 495a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return false; 496a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 497a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes memset(&req, 0, sizeof(req)); 498a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes strncpy(req.ifr_name, interfaceName.c_str(), sizeof(req.ifr_name)); 499a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes req.ifr_name[sizeof(req.ifr_name) - 1] = '\0'; 500a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return true; 501a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 502a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 5030ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool fillUnixSocketAddress(JNIEnv* env, jobject javaUnixSocketAddress, 5040ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller const sockaddr_storage& ss, const socklen_t& sa_len) { 5050ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (javaUnixSocketAddress == NULL) { 5060ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return true; 5070ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 5082550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller jbyteArray javaSunPath = getUnixSocketPath(env, ss, sa_len); 5092550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if (!javaSunPath) { 5100ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return false; 5110ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 5120ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 5130ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller static jfieldID sunPathFid = 5140ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller env->GetFieldID(JniConstants::unixSocketAddressClass, "sun_path", "[B"); 5152550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller env->SetObjectField(javaUnixSocketAddress, sunPathFid, javaSunPath); 5160ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return true; 5170ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller} 5180ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 5190ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool fillInetSocketAddress(JNIEnv* env, jobject javaInetSocketAddress, 5200ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller const sockaddr_storage& ss) { 5210ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (javaInetSocketAddress == NULL) { 522553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 523553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 524553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes // Fill out the passed-in InetSocketAddress with the sender's IP address and port number. 525553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jint port; 526553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes jobject sender = sockaddrToInetAddress(env, ss, &port); 527553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes if (sender == NULL) { 528553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return false; 529553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 5304cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath static jfieldID holderFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "holder", 5314cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath "Ljava/net/InetSocketAddress$InetSocketAddressHolder;"); 532ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski jobject holder = env->GetObjectField(javaInetSocketAddress, holderFid); 533ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski 5344cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath static jfieldID addressFid = env->GetFieldID(JniConstants::inetSocketAddressHolderClass, 5354cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath "addr", "Ljava/net/InetAddress;"); 536ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressHolderClass, "port", "I"); 537ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski env->SetObjectField(holder, addressFid, sender); 538ea544eccd7c78b693804d763dabbd8f7247dc802Piotr Jastrzebski env->SetIntField(holder, portFid, port); 539553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return true; 540553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 541553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 5420ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool fillSocketAddress(JNIEnv* env, jobject javaSocketAddress, const sockaddr_storage& ss, 5430ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller const socklen_t& sa_len) { 5440ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (javaSocketAddress == NULL) { 5450ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return true; 5460ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 5470ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 5480ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { 5490ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return fillInetSocketAddress(env, javaSocketAddress, ss); 5500ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::unixSocketAddressClass)) { 5510ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return fillUnixSocketAddress(env, javaSocketAddress, ss, sa_len); 5520ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 5530ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller jniThrowException(env, "java/lang/UnsupportedOperationException", 5540ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller "unsupported SocketAddress subclass"); 5550ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return false; 5560ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 5570ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller} 5580ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 559f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colittistatic void javaInetSocketAddressToInetAddressAndPort( 560f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti JNIEnv* env, jobject javaInetSocketAddress, jobject& javaInetAddress, jint& port) { 5614cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath static jfieldID holderFid = env->GetFieldID(JniConstants::inetSocketAddressClass, "holder", 5624cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath "Ljava/net/InetSocketAddress$InetSocketAddressHolder;"); 5634cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath jobject holder = env->GetObjectField(javaInetSocketAddress, holderFid); 5644cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath 5658f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID addressFid = env->GetFieldID( 5664cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath JniConstants::inetSocketAddressHolderClass, "addr", "Ljava/net/InetAddress;"); 5674cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath static jfieldID portFid = env->GetFieldID(JniConstants::inetSocketAddressHolderClass, "port", "I"); 5684cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath 5694cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath javaInetAddress = env->GetObjectField(holder, addressFid); 5704cb97fe003dcf14ccd8f6e381cd172020248efaeNarayan Kamath port = env->GetIntField(holder, portFid); 571f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti} 572f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti 573f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colittistatic bool javaInetSocketAddressToSockaddr( 574f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 575f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jobject javaInetAddress; 576f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jint port; 577f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port); 578f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti return inetAddressToSockaddr(env, javaInetAddress, port, ss, sa_len); 5798f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 5808f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 5818f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic bool javaNetlinkSocketAddressToSockaddr( 5828f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 5838f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID nlPidFid = env->GetFieldID( 5848f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JniConstants::netlinkSocketAddressClass, "nlPortId", "I"); 5858f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline static jfieldID nlGroupsFid = env->GetFieldID( 5868f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JniConstants::netlinkSocketAddressClass, "nlGroupsMask", "I"); 5878f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 5888f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sockaddr_nl *nlAddr = reinterpret_cast<sockaddr_nl *>(&ss); 5898f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline nlAddr->nl_family = AF_NETLINK; 5908f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline nlAddr->nl_pid = env->GetIntField(javaSocketAddress, nlPidFid); 5918f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline nlAddr->nl_groups = env->GetIntField(javaSocketAddress, nlGroupsFid); 5928f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sa_len = sizeof(sockaddr_nl); 5938f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return true; 5948f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 5958f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 5960ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fullerstatic bool javaUnixSocketAddressToSockaddr( 5970ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller JNIEnv* env, jobject javaUnixSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 5980ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller static jfieldID sunPathFid = env->GetFieldID( 5990ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller JniConstants::unixSocketAddressClass, "sun_path", "[B"); 6000ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 6010ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller struct sockaddr_un* un_addr = reinterpret_cast<struct sockaddr_un*>(&ss); 6022550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller memset (un_addr, 0, sizeof(sockaddr_un)); 6030ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller un_addr->sun_family = AF_UNIX; 6040ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 6050ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller jbyteArray javaSunPath = (jbyteArray) env->GetObjectField(javaUnixSocketAddress, sunPathFid); 6060ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller jsize pathLength = env->GetArrayLength(javaSunPath); 6072550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller if ((size_t) pathLength > sizeof(sockaddr_un::sun_path)) { 6082550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller jniThrowExceptionFmt(env, "java/lang/IllegalArgumentException", 6092550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller "sun_path too long: max=%i, is=%i", 6102550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller sizeof(sockaddr_un::sun_path), pathLength); 6112550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller return false; 6120ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 6132550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller env->GetByteArrayRegion(javaSunPath, 0, pathLength, (jbyte*) un_addr->sun_path); 6142550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // sa_len is sun_path plus the length of the overhead (ss_family_t). See unix(7) for 6152550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // details. This calculation must match that of socket_make_sockaddr_un() in 6162550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller // socket_local_client.c and getUnixSocketPath() to interoperate. 6172550a252387631b49a00d2ee5587717cd2a6dda3Neil Fuller sa_len = offsetof(struct sockaddr_un, sun_path) + pathLength; 6180ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return true; 6190ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller} 6200ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller 62100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colittistatic bool javaPacketSocketAddressToSockaddr( 62200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 62300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID protocolFid = env->GetFieldID( 62400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_protocol", "S"); 62500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID ifindexFid = env->GetFieldID( 62600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_ifindex", "I"); 62700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID hatypeFid = env->GetFieldID( 62800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_hatype", "S"); 62900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID pkttypeFid = env->GetFieldID( 63000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_pkttype", "B"); 63100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti static jfieldID addrFid = env->GetFieldID( 63200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti JniConstants::packetSocketAddressClass, "sll_addr", "[B"); 63300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti 63400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sockaddr_ll *sll = reinterpret_cast<sockaddr_ll *>(&ss); 63500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_family = AF_PACKET; 636e0273519773d7b14680fe0aa8bc180836042f245Lorenzo Colitti sll->sll_protocol = htons(env->GetShortField(javaSocketAddress, protocolFid)); 63700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_ifindex = env->GetIntField(javaSocketAddress, ifindexFid); 63800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_hatype = env->GetShortField(javaSocketAddress, hatypeFid); 63900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_pkttype = env->GetByteField(javaSocketAddress, pkttypeFid); 64000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti 64100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jbyteArray sllAddr = (jbyteArray) env->GetObjectField(javaSocketAddress, addrFid); 64200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if (sllAddr == NULL) { 64300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_halen = 0; 64400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti memset(&sll->sll_addr, 0, sizeof(sll->sll_addr)); 64500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } else { 64600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti jsize len = env->GetArrayLength(sllAddr); 64700bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if ((size_t) len > sizeof(sll->sll_addr)) { 64800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti len = sizeof(sll->sll_addr); 64900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 65000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sll->sll_halen = len; 65100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti env->GetByteArrayRegion(sllAddr, 0, len, (jbyte*) sll->sll_addr); 65200bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 65300bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti sa_len = sizeof(sockaddr_ll); 65400bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return true; 65500bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti} 65600bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti 6578f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Klinestatic bool javaSocketAddressToSockaddr( 6588f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject javaSocketAddress, sockaddr_storage& ss, socklen_t& sa_len) { 6598f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (javaSocketAddress == NULL) { 6608f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jniThrowNullPointerException(env, NULL); 6618f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return false; 6628f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 6638f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 6648f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (env->IsInstanceOf(javaSocketAddress, JniConstants::netlinkSocketAddressClass)) { 6658f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return javaNetlinkSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 6668f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { 6678f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return javaInetSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 66800bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::packetSocketAddressClass)) { 66900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti return javaPacketSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 6700ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } else if (env->IsInstanceOf(javaSocketAddress, JniConstants::unixSocketAddressClass)) { 6710ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return javaUnixSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len); 6728f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 6738f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline jniThrowException(env, "java/lang/UnsupportedOperationException", 6748f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline "unsupported SocketAddress subclass"); 6758f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return false; 6768f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 6778f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 67847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughesstatic jobject doStat(JNIEnv* env, jstring javaPath, bool isLstat) { 67947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes ScopedUtfChars path(env, javaPath); 68047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes if (path.c_str() == NULL) { 68147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 68247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 68313a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong struct stat64 sb; 68413a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong int rc = isLstat ? TEMP_FAILURE_RETRY(lstat64(path.c_str(), &sb)) 68513a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong : TEMP_FAILURE_RETRY(stat64(path.c_str(), &sb)); 686dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 6877e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, isLstat ? "lstat" : "stat"); 68847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 68947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 69047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 691ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 692ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 693482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughesstatic jobject doGetSockName(JNIEnv* env, jobject javaFd, bool is_sockname) { 694482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 695482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage ss; 696482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr* sa = reinterpret_cast<sockaddr*>(&ss); 697482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t byteCount = sizeof(ss); 698482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&ss, 0, byteCount); 699482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = is_sockname ? TEMP_FAILURE_RETRY(getsockname(fd, sa, &byteCount)) 700482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes : TEMP_FAILURE_RETRY(getpeername(fd, sa, &byteCount)); 701482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 702482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, is_sockname ? "getsockname" : "getpeername"); 703482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 704482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 7050ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller return makeSocketAddress(env, ss, byteCount); 706482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 707482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 708d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesclass Passwd { 709d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughespublic: 7103b527308aae5a23ac71cf5f637b4595a9b55a2dbChih-Hung Hsieh explicit Passwd(JNIEnv* env) : mEnv(env), mResult(NULL) { 711d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBufferSize = sysconf(_SC_GETPW_R_SIZE_MAX); 712d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes mBuffer.reset(new char[mBufferSize]); 713d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 714d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 715d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwnam(const char* name) { 716d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwnam_r", getpwnam_r(name, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 717d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 718d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 719d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject getpwuid(uid_t uid) { 720d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return process("getpwuid_r", getpwuid_r(uid, &mPwd, mBuffer.get(), mBufferSize, &mResult)); 721d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 722d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 723d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* get() { 724d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return mResult; 725d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 726d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 727d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughesprivate: 728d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes jobject process(const char* syscall, int error) { 729d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (mResult == NULL) { 730d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes errno = error; 731d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes throwErrnoException(mEnv, syscall); 732d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 733d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 734d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return makeStructPasswd(mEnv, *mResult); 735d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 736d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 737d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes JNIEnv* mEnv; 738b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<char[]> mBuffer; 739d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes size_t mBufferSize; 740d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd mPwd; 741d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes struct passwd* mResult; 742d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes}; 743d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 7445744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic void AssertException(JNIEnv* env) { 7455744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (env->ExceptionCheck() == JNI_FALSE) { 7465744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->FatalError("Expected exception"); 7475744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 7485744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 7495744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 7505744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe// Note for capabilities functions: 7515744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe// We assume the calls are rare enough that it does not make sense to cache class objects. The 7525744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe// advantage is lower maintenance burden. 7535744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 7545744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic bool ReadStructCapUserHeader( 7555744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe JNIEnv* env, jobject java_header, __user_cap_header_struct* c_header) { 7565744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (java_header == nullptr) { 7575744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jniThrowNullPointerException(env, "header is null"); 7585744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 7595744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 7605744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 7615744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jclass> header_class(env, env->FindClass("android/system/StructCapUserHeader")); 7625744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (header_class.get() == nullptr) { 7635744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 7645744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 7655744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 7665744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 7675744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID version_fid = env->GetFieldID(header_class.get(), "version", "I"); 7685744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version_fid == nullptr) { 7695744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 7705744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 7715744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_header->version = env->GetIntField(java_header, version_fid); 7725744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 7735744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 7745744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 7755744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID pid_fid = env->GetFieldID(header_class.get(), "pid", "I"); 7765744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (pid_fid == nullptr) { 7775744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 7785744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 7795744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_header->pid = env->GetIntField(java_header, pid_fid); 7805744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 7815744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 7825744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return true; 7835744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 7845744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 7855744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic void SetStructCapUserHeaderVersion( 7865744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe JNIEnv* env, jobject java_header, __user_cap_header_struct* c_header) { 7875744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jclass> header_class(env, env->FindClass("android/system/StructCapUserHeader")); 7885744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (header_class.get() == nullptr) { 7895744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->ExceptionClear(); 7905744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 7915744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 7925744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 7935744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID version_fid = env->GetFieldID(header_class.get(), "version", "I"); 7945744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version_fid == nullptr) { 7955744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->ExceptionClear(); 7965744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 7975744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 7985744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->SetIntField(java_header, version_fid, c_header->version); 7995744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 8005744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8015744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic jobject CreateStructCapUserData( 8025744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe JNIEnv* env, jclass data_class, __user_cap_data_struct* c_data) { 8035744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (c_data == nullptr) { 8045744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Should not happen. 8055744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jniThrowNullPointerException(env, "data is null"); 8065744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 8075744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8085744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8095744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jmethodID data_cons = env->GetMethodID(data_class, "<init>", "(III)V"); 8105744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (data_cons == nullptr) { 8115744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 8125744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8135744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8145744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jint e = static_cast<jint>(c_data->effective); 8155744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jint p = static_cast<jint>(c_data->permitted); 8165744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jint i = static_cast<jint>(c_data->inheritable); 8175744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return env->NewObject(data_class, data_cons, e, p, i); 8185744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 8195744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8205744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic bool ReadStructCapUserData(JNIEnv* env, jobject java_data, __user_cap_data_struct* c_data) { 8215744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (java_data == nullptr) { 8225744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jniThrowNullPointerException(env, "data is null"); 8235744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8245744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8255744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8265744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jclass> data_class(env, env->FindClass("android/system/StructCapUserData")); 8275744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (data_class.get() == nullptr) { 8285744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8295744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8305744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8315744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 8325744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID effective_fid = env->GetFieldID(data_class.get(), "effective", "I"); 8335744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (effective_fid == nullptr) { 8345744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8355744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8365744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_data->effective = env->GetIntField(java_data, effective_fid); 8375744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8385744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8395744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 8405744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID permitted_fid = env->GetFieldID(data_class.get(), "permitted", "I"); 8415744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (permitted_fid == nullptr) { 8425744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8435744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8445744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_data->permitted = env->GetIntField(java_data, permitted_fid); 8455744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8465744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8475744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8485744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe { 8495744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe static jfieldID inheritable_fid = env->GetFieldID(data_class.get(), "inheritable", "I"); 8505744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (inheritable_fid == nullptr) { 8515744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return false; 8525744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8535744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe c_data->inheritable = env->GetIntField(java_data, inheritable_fid); 8545744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8555744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8565744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return true; 8575744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 8585744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8595744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic constexpr size_t kMaxCapUserDataLength = 2U; 8605744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_1 8615744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic_assert(kMaxCapUserDataLength >= _LINUX_CAPABILITY_U32S_1, "Length too small."); 8625744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 8635744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_2 8645744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic_assert(kMaxCapUserDataLength >= _LINUX_CAPABILITY_U32S_2, "Length too small."); 8655744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 8665744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_3 8675744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic_assert(kMaxCapUserDataLength >= _LINUX_CAPABILITY_U32S_3, "Length too small."); 8685744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 8695744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_4 8705744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic_assert(false, "Unsupported capability version, please update."); 8715744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 8725744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8735744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic size_t GetCapUserDataLength(uint32_t version) { 8745744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_1 8755744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version == _LINUX_CAPABILITY_VERSION_1) { 8765744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return _LINUX_CAPABILITY_U32S_1; 8775744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8785744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 8795744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_2 8805744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version == _LINUX_CAPABILITY_VERSION_2) { 8815744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return _LINUX_CAPABILITY_U32S_2; 8825744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8835744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 8845744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#ifdef _LINUX_CAPABILITY_VERSION_3 8855744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (version == _LINUX_CAPABILITY_VERSION_3) { 8865744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return _LINUX_CAPABILITY_U32S_3; 8875744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 8885744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe#endif 8895744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return 0; 8905744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 8915744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 8920965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_accept(JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { 893553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes sockaddr_storage ss; 894553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes socklen_t sl = sizeof(ss); 895553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes memset(&ss, 0, sizeof(ss)); 8960ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller sockaddr* peer = (javaSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 8970ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller socklen_t* peerLength = (javaSocketAddress != NULL) ? &sl : 0; 8981124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint clientFd = NET_FAILURE_RETRY(env, int, accept, javaFd, peer, peerLength); 8990ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller if (clientFd == -1 || !fillSocketAddress(env, javaSocketAddress, ss, *peerLength)) { 900553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes close(clientFd); 901553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return NULL; 902553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes } 903553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes return (clientFd != -1) ? jniCreateFileDescriptor(env, clientFd) : NULL; 904553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes} 905553d98af897f7202de5e5a776287de0b5ca8fe39Elliott Hughes 9060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jboolean Linux_access(JNIEnv* env, jobject, jstring javaPath, jint mode) { 907ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes ScopedUtfChars path(env, javaPath); 908ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes if (path.c_str() == NULL) { 909ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return JNI_FALSE; 910ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes } 91147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int rc = TEMP_FAILURE_RETRY(access(path.c_str(), mode)); 912dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 9137e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "access"); 914dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes } 915ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return (rc == 0); 916ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 917ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 9180965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_bind(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 9191124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes // We don't need the return value because we'll already have thrown. 920b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti (void) NET_IPV4_FALLBACK(env, int, bind, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN); 921da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes} 922da15009528cc8300a6251f1d0931ac8657c9fc31Elliott Hughes 9230965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_bindSocketAddress( 9248f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { 9258f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sockaddr_storage ss; 9268f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline socklen_t sa_len; 9278f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { 9288f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return; // Exception already thrown. 9298f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 9308f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 9318f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 9328f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline // We don't need the return value because we'll already have thrown. 9338f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline (void) NET_FAILURE_RETRY(env, int, bind, javaFd, sa, sa_len); 9348f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 9358f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 9365744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic jobjectArray Linux_capget(JNIEnv* env, jobject, jobject header) { 9375744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Convert Java header struct to kernel datastructure. 9385744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe __user_cap_header_struct cap_header; 9395744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (!ReadStructCapUserHeader(env, header, &cap_header)) { 9405744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe AssertException(env); 9415744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 9425744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9435744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 9445744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Call capget. 9455744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe __user_cap_data_struct cap_data[kMaxCapUserDataLength]; 9465744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (capget(&cap_header, &cap_data[0]) == -1) { 9475744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Check for EINVAL. In that case, mutate the header. 9485744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (errno == EINVAL) { 9495744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe int saved_errno = errno; 9505744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe SetStructCapUserHeaderVersion(env, header, &cap_header); 9515744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe errno = saved_errno; 9525744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9535744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe throwErrnoException(env, "capget"); 9545744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 9555744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9565744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 9575744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Create the result array. 9585744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jclass> data_class(env, env->FindClass("android/system/StructCapUserData")); 9595744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (data_class.get() == nullptr) { 9605744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 9615744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9625744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe size_t result_size = GetCapUserDataLength(cap_header.version); 9635744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jobjectArray> result( 9645744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env, env->NewObjectArray(result_size, data_class.get(), nullptr)); 9655744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (result.get() == nullptr) { 9665744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 9675744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9685744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Translate the values we got. 9695744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe for (size_t i = 0; i < result_size; ++i) { 9705744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jobject> value( 9715744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env, CreateStructCapUserData(env, data_class.get(), &cap_data[i])); 9725744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (value.get() == nullptr) { 9735744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe AssertException(env); 9745744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return nullptr; 9755744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9765744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->SetObjectArrayElement(result.get(), i, value.get()); 9775744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9785744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return result.release(); 9795744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 9805744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 9815744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampestatic void Linux_capset( 9825744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe JNIEnv* env, jobject, jobject header, jobjectArray data) { 9835744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Convert Java header struct to kernel datastructure. 9845744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe __user_cap_header_struct cap_header; 9855744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (!ReadStructCapUserHeader(env, header, &cap_header)) { 9865744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe AssertException(env); 9875744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 9885744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9895744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe size_t result_size = GetCapUserDataLength(cap_header.version); 9905744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Ensure that the array has the expected length. 9915744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (env->GetArrayLength(data) != static_cast<jint>(result_size)) { 9925744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe jniThrowExceptionFmt(env, 9935744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe "java/lang/IllegalArgumentException", 9945744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe "Unsupported input length %d (expected %zu)", 9955744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe env->GetArrayLength(data), 9965744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe result_size); 9975744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 9985744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 9995744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 10005744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe __user_cap_data_struct cap_data[kMaxCapUserDataLength]; 10015744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe // Translate the values we got. 10025744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe for (size_t i = 0; i < result_size; ++i) { 10035744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe ScopedLocalRef<jobject> value(env, env->GetObjectArrayElement(data, i)); 10045744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe if (!ReadStructCapUserData(env, value.get(), &cap_data[i])) { 10055744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe AssertException(env); 10065744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe return; 10075744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10085744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe } 10095744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 10105744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe throwIfMinusOne(env, "capset", capset(&cap_header, &cap_data[0])); 10115744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe} 10125744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe 10130965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_chmod(JNIEnv* env, jobject, jstring javaPath, jint mode) { 1014b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes ScopedUtfChars path(env, javaPath); 1015b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes if (path.c_str() == NULL) { 1016b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes return; 1017b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes } 1018b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes throwIfMinusOne(env, "chmod", TEMP_FAILURE_RETRY(chmod(path.c_str(), mode))); 1019b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes} 1020b7190190e0ef8de883c952efb319ce7748831faaElliott Hughes 10210965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_chown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 102244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 102344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 102444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 102544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 102644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "chown", TEMP_FAILURE_RETRY(chown(path.c_str(), uid, gid))); 102744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 102844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 10290965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_close(JNIEnv* env, jobject, jobject javaFd) { 1030462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Get the FileDescriptor's 'fd' field and clear it. 1031462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // We need to do this before we can throw an IOException (http://b/3222087). 1032462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1033462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd, -1); 1034462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 1035462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Even if close(2) fails with EINTR, the fd will have been closed. 1036462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // Using TEMP_FAILURE_RETRY will either lead to EBADF or closing someone else's fd. 1037462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes // http://lkml.indiana.edu/hypermail/linux/kernel/0509.1/0877.html 1038462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes throwIfMinusOne(env, "close", close(fd)); 1039462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes} 1040462bdac45c10f43d88d8f07f6994e272a27c14a2Elliott Hughes 10410965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_connect(JNIEnv* env, jobject, jobject javaFd, jobject javaAddress, jint port) { 1042b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti (void) NET_IPV4_FALLBACK(env, int, connect, javaFd, javaAddress, port, NULL_ADDR_FORBIDDEN); 1043996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes} 1044996bf79565ac88402920bd826d6f85952c83be20Elliott Hughes 10450965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_connectSocketAddress( 10468f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline JNIEnv* env, jobject, jobject javaFd, jobject javaSocketAddress) { 10478f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline sockaddr_storage ss; 10488f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline socklen_t sa_len; 10498f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { 10508f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline return; // Exception already thrown. 10518f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline } 10528f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 10538f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 10548f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline // We don't need the return value because we'll already have thrown. 10558f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline (void) NET_FAILURE_RETRY(env, int, connect, javaFd, sa, sa_len); 10568f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline} 10578f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 10580965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_dup(JNIEnv* env, jobject, jobject javaOldFd) { 1059396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 1060396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int newFd = throwIfMinusOne(env, "dup", TEMP_FAILURE_RETRY(dup(oldFd))); 1061396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (newFd != -1) ? jniCreateFileDescriptor(env, newFd) : NULL; 1062396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1063396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 10640965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_dup2(JNIEnv* env, jobject, jobject javaOldFd, jint newFd) { 1065396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int oldFd = jniGetFDFromFileDescriptor(env, javaOldFd); 1066396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes int fd = throwIfMinusOne(env, "dup2", TEMP_FAILURE_RETRY(dup2(oldFd, newFd))); 1067396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes return (fd != -1) ? jniCreateFileDescriptor(env, fd) : NULL; 1068396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1069396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 10700965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_environ(JNIEnv* env, jobject) { 1071ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes extern char** environ; // Standard, but not in any header file. 1072ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return toStringArray(env, environ); 1073ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 1074ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 10750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_execve(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv, jobjectArray javaEnvp) { 1076798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 1077798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 1078798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 1079798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 1080798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 1081ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 1082ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings envp(env, javaEnvp); 1083fa542091e45db699a937c5ac0191194405107827Elliott Hughes TEMP_FAILURE_RETRY(execve(path.c_str(), argv.get(), envp.get())); 1084798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 1085798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execve"); 1086798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 1087798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 10880965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_execv(JNIEnv* env, jobject, jstring javaFilename, jobjectArray javaArgv) { 1089798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich ScopedUtfChars path(env, javaFilename); 1090798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich if (path.c_str() == NULL) { 1091798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich return; 1092798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich } 1093798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 1094ad9208affa02f92a6b85354a33123d51d80febe1Elliott Hughes ExecStrings argv(env, javaArgv); 1095fa542091e45db699a937c5ac0191194405107827Elliott Hughes TEMP_FAILURE_RETRY(execv(path.c_str(), argv.get())); 1096798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 1097798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich throwErrnoException(env, "execv"); 1098798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich} 1099798f855f67b74d481346d9dc2293ba0eedd8daf9Nick Kralevich 11000965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_fchmod(JNIEnv* env, jobject, jobject javaFd, jint mode) { 110144f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 110244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchmod", TEMP_FAILURE_RETRY(fchmod(fd, mode))); 110344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 110444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 11050965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_fchown(JNIEnv* env, jobject, jobject javaFd, jint uid, jint gid) { 110644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 110744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "fchown", TEMP_FAILURE_RETRY(fchown(fd, uid, gid))); 110844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 110944f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 11100965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_fcntlFlock(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaFlock) { 1111fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID typeFid = env->GetFieldID(JniConstants::structFlockClass, "l_type", "S"); 1112fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID whenceFid = env->GetFieldID(JniConstants::structFlockClass, "l_whence", "S"); 1113fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID startFid = env->GetFieldID(JniConstants::structFlockClass, "l_start", "J"); 1114fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID lenFid = env->GetFieldID(JniConstants::structFlockClass, "l_len", "J"); 1115fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes static jfieldID pidFid = env->GetFieldID(JniConstants::structFlockClass, "l_pid", "I"); 1116fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 1117fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes struct flock64 lock; 1118fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes memset(&lock, 0, sizeof(lock)); 1119fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_type = env->GetShortField(javaFlock, typeFid); 1120fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_whence = env->GetShortField(javaFlock, whenceFid); 1121fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_start = env->GetLongField(javaFlock, startFid); 1122fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_len = env->GetLongField(javaFlock, lenFid); 1123fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes lock.l_pid = env->GetIntField(javaFlock, pidFid); 1124fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 11258add3229ceb13f2aa5d15b84cc59f5ecc6b90214Neil Fuller int rc = IO_FAILURE_RETRY(env, int, fcntl, javaFd, cmd, &lock); 1126fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes if (rc != -1) { 1127fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, typeFid, lock.l_type); 1128fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetShortField(javaFlock, whenceFid, lock.l_whence); 1129fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, startFid, lock.l_start); 1130fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetLongField(javaFlock, lenFid, lock.l_len); 1131fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes env->SetIntField(javaFlock, pidFid, lock.l_pid); 1132fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes } 1133fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes return rc; 1134fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes} 1135fc549a0b0388987b26dea524894d75a63d14783bElliott Hughes 11360965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_fcntlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jint arg) { 1137c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath int fd = jniGetFDFromFileDescriptor(env, javaFd); 1138c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd, arg))); 1139c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath} 1140c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath 11410965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_fcntlVoid(JNIEnv* env, jobject, jobject javaFd, jint cmd) { 1142c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath int fd = jniGetFDFromFileDescriptor(env, javaFd); 1143c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath return throwIfMinusOne(env, "fcntl", TEMP_FAILURE_RETRY(fcntl(fd, cmd))); 1144c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath} 1145c8d9ea662de6f4856b28907b4119087cfc5a44d2Narayan Kamath 11460965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_fdatasync(JNIEnv* env, jobject, jobject javaFd) { 114752724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 11487e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fdatasync", TEMP_FAILURE_RETRY(fdatasync(fd))); 114952724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 115052724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 11510965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_fstat(JNIEnv* env, jobject, jobject javaFd) { 115247cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 115313a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong struct stat64 sb; 115413a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong int rc = TEMP_FAILURE_RETRY(fstat64(fd, &sb)); 1155dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes if (rc == -1) { 11567e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "fstat"); 115747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return NULL; 115847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes } 115947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return makeStructStat(env, sb); 116047cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 116147cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 11620965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_fstatvfs(JNIEnv* env, jobject, jobject javaFd) { 116359fa7163774d6930a174bc038414a4b780581957Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1164721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 1165721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(fstatvfs(fd, &sb)); 116659fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 1167721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "fstatvfs"); 116859fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 116959fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 1170721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 117159fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 117259fa7163774d6930a174bc038414a4b780581957Elliott Hughes 11730965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_fsync(JNIEnv* env, jobject, jobject javaFd) { 117452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 11757e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "fsync", TEMP_FAILURE_RETRY(fsync(fd))); 1176f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes} 1177f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes 11780965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_ftruncate(JNIEnv* env, jobject, jobject javaFd, jlong length) { 1179f5333fd2094bdac4d6506177b1964b79afa64d77Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 11807e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "ftruncate", TEMP_FAILURE_RETRY(ftruncate64(fd, length))); 118152724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes} 118252724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes 11830965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_gai_strerror(JNIEnv* env, jobject, jint error) { 11844f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(gai_strerror(error)); 11854f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 11864f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 11870965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_android_getaddrinfo(JNIEnv* env, jobject, jstring javaNode, 11883e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen jobject javaHints, jint netId) { 11891c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars node(env, javaNode); 11901c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (node.c_str() == NULL) { 11911c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 11921c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 11931c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 11941c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID flagsFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_flags", "I"); 11951c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID familyFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_family", "I"); 11961c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID socktypeFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_socktype", "I"); 11971c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes static jfieldID protocolFid = env->GetFieldID(JniConstants::structAddrinfoClass, "ai_protocol", "I"); 11981c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 11991c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo hints; 12001c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&hints, 0, sizeof(hints)); 12011c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_flags = env->GetIntField(javaHints, flagsFid); 12021c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_family = env->GetIntField(javaHints, familyFid); 12031c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_socktype = env->GetIntField(javaHints, socktypeFid); 12041c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes hints.ai_protocol = env->GetIntField(javaHints, protocolFid); 12051c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12061c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes addrinfo* addressList = NULL; 120775cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 12083e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen int rc = android_getaddrinfofornet(node.c_str(), NULL, &hints, netId, 0, &addressList); 1209b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<addrinfo, addrinfo_deleter> addressListDeleter(addressList); 12101c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (rc != 0) { 12113e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen throwGaiException(env, "android_getaddrinfo", rc); 12121c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 12131c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12141c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12151c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Count results so we know how to size the output array. 12161c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int addressCount = 0; 12171c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 12181c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family == AF_INET || ai->ai_family == AF_INET6) { 12191c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++addressCount; 12201c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } else { 12213e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); 12221c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12231c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12241c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (addressCount == 0) { 12251c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 12261c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12271c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12281c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Prepare output array. 12291c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes jobjectArray result = env->NewObjectArray(addressCount, JniConstants::inetAddressClass, NULL); 12301c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (result == NULL) { 12311c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 12321c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12331c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12341c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Examine returned addresses one by one, save them in the output array. 12351c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes int index = 0; 12361c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes for (addrinfo* ai = addressList; ai != NULL; ai = ai->ai_next) { 12371c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (ai->ai_family != AF_INET && ai->ai_family != AF_INET6) { 12381c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Unknown address family. Skip this address. 12393e58734d651080009c9190c7062837fca5c7cf4ePaul Jensen ALOGE("android_getaddrinfo unexpected ai_family %i", ai->ai_family); 12401c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes continue; 12411c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12421c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12431c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes // Convert each IP address into a Java byte array. 1244482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes sockaddr_storage& address = *reinterpret_cast<sockaddr_storage*>(ai->ai_addr); 124523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedLocalRef<jobject> inetAddress(env, sockaddrToInetAddress(env, address, NULL)); 12461c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (inetAddress.get() == NULL) { 12471c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 12481c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12491c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes env->SetObjectArrayElement(result, index, inetAddress.get()); 12501c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ++index; 12511c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 12521c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return result; 12531c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 12541c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 12550965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getegid(JNIEnv*, jobject) { 1256564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return getegid(); 1257396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1258396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 12590965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_geteuid(JNIEnv*, jobject) { 1260564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return geteuid(); 1261396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1262396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 12630965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getgid(JNIEnv*, jobject) { 1264564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return getgid(); 1265396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1266396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 12670965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_getenv(JNIEnv* env, jobject, jstring javaName) { 1268ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes ScopedUtfChars name(env, javaName); 1269ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes if (name.c_str() == NULL) { 1270ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return NULL; 1271ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes } 1272ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes return env->NewStringUTF(getenv(name.c_str())); 1273ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 1274ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes 12750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_getnameinfo(JNIEnv* env, jobject, jobject javaAddress, jint flags) { 12764f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes sockaddr_storage ss; 1277482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 1278482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaAddress, 0, ss, sa_len)) { 12794f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 12804f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 12814f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes char buf[NI_MAXHOST]; // NI_MAXHOST is longer than INET6_ADDRSTRLEN. 128275cf14944d476670f6f915e5efd849e238a16250Elliott Hughes errno = 0; 1283482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = getnameinfo(reinterpret_cast<sockaddr*>(&ss), sa_len, buf, sizeof(buf), NULL, 0, flags); 12844f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes if (rc != 0) { 12854f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes throwGaiException(env, "getnameinfo", rc); 12864f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return NULL; 12874f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes } 12884f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes return env->NewStringUTF(buf); 12894f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes} 12904f11ebea266eada830d507b8f011e811a8e5d7bcElliott Hughes 12910965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getpeername(JNIEnv* env, jobject, jobject javaFd) { 1292482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, false); 1293482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 1294482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 12950965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getpgid(JNIEnv* env, jobject, jint pid) { 12968f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes return throwIfMinusOne(env, "getpgid", TEMP_FAILURE_RETRY(getpgid(pid))); 12978f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 12988f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 12990965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getpid(JNIEnv*, jobject) { 1300fa542091e45db699a937c5ac0191194405107827Elliott Hughes return TEMP_FAILURE_RETRY(getpid()); 1301396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1302396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 13030965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getppid(JNIEnv*, jobject) { 1304fa542091e45db699a937c5ac0191194405107827Elliott Hughes return TEMP_FAILURE_RETRY(getppid()); 1305396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1306396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 13070965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getpwnam(JNIEnv* env, jobject, jstring javaName) { 1308d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes ScopedUtfChars name(env, javaName); 1309d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes if (name.c_str() == NULL) { 1310d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return NULL; 1311d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes } 1312d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwnam(name.c_str()); 1313d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 1314d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 13150965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getpwuid(JNIEnv* env, jobject, jint uid) { 1316d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes return Passwd(env).getpwuid(uid); 1317d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes} 1318d4419fce71d11ec8494525eca65e54d1aab51de6Elliott Hughes 1319e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamathstatic jobject Linux_getrlimit(JNIEnv* env, jobject, jint resource) { 1320e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath struct rlimit r; 1321e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath if (throwIfMinusOne(env, "getrlimit", TEMP_FAILURE_RETRY(getrlimit(resource, &r))) == -1) { 1322e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath return nullptr; 1323e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath } 1324e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath 1325e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath ScopedLocalRef<jclass> rlimit_class(env, env->FindClass("android/system/StructRlimit")); 1326e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath jmethodID ctor = env->GetMethodID(rlimit_class.get(), "<init>", "(JJ)V"); 1327e785612bdf3b0112b5a1854bdf241f0ef87a3171Narayan Kamath return env->NewObject(rlimit_class.get(), ctor, 1328e785612bdf3b0112b5a1854bdf241f0ef87a3171Narayan Kamath static_cast<jlong>(r.rlim_cur), 1329e785612bdf3b0112b5a1854bdf241f0ef87a3171Narayan Kamath static_cast<jlong>(r.rlim_max)); 1330e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath} 1331e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath 13320965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockname(JNIEnv* env, jobject, jobject javaFd) { 1333482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return doGetSockName(env, javaFd, true); 13340a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 13350a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 13360965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 13370a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 13380a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes u_char result = 0; 13390a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 13400a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 13410a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 13420a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 13430a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 13440965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockoptInAddr(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 13450a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 13460a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_storage ss; 13470a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&ss, 0, sizeof(ss)); 13480a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes ss.ss_family = AF_INET; // This is only for the IPv4-only IP_MULTICAST_IF. 13490a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes sockaddr_in* sa = reinterpret_cast<sockaddr_in*>(&ss); 13500a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(sa->sin_addr); 13510a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &sa->sin_addr, &size)); 13520a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 13530a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 13540a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 13550a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 1356482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 13570a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 13580a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 13590965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 13600a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 13610a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes jint result = 0; 13620a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(result); 13630a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwIfMinusOne(env, "getsockopt", TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &result, &size))); 13640a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return result; 13650a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 13660a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 13670965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 13680a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 13690a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct linger l; 13700a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(l); 13710a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&l, 0, size); 13720a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &l, &size)); 13730a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 13740a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 13750a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 13760a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 13770a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructLinger(env, l); 13780a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 13790a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 13800965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 13810a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 13820a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes struct timeval tv; 13830a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes socklen_t size = sizeof(tv); 13840a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes memset(&tv, 0, size); 13850a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &tv, &size)); 13860a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes if (rc == -1) { 13870a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes throwErrnoException(env, "getsockopt"); 13880a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return NULL; 13890a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes } 13900a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes return makeStructTimeval(env, tv); 13910a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes} 13920a9d1ee45a9884a9616624d747172e18734e8fe0Elliott Hughes 13930965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_getsockoptUcred(JNIEnv* env, jobject, jobject javaFd, jint level, jint option) { 1394482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1395482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes struct ucred u; 1396482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t size = sizeof(u); 1397482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes memset(&u, 0, size); 1398482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes int rc = TEMP_FAILURE_RETRY(getsockopt(fd, level, option, &u, &size)); 1399482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (rc == -1) { 1400482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes throwErrnoException(env, "getsockopt"); 1401482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return NULL; 1402482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes } 1403482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return makeStructUcred(env, u); 1404482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes} 1405482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes 14060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_gettid(JNIEnv* env __unused, jobject) { 1407efe42934a8523f2b051a351e5eceebf6216454aeElliott Hughes#if defined(__BIONIC__) 1408fa542091e45db699a937c5ac0191194405107827Elliott Hughes return TEMP_FAILURE_RETRY(gettid()); 14093deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#else 1410069525a39125c203b658c805685b6045a7d4dfebElliott Hughes return syscall(__NR_gettid); 14113deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers#endif 1412069525a39125c203b658c805685b6045a7d4dfebElliott Hughes} 1413069525a39125c203b658c805685b6045a7d4dfebElliott Hughes 14140965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_getuid(JNIEnv*, jobject) { 1415564312855784c9ae57e2af73affc48b0807b13eeElliott Hughes return getuid(); 1416396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 1417396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 14180965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jbyteArray Linux_getxattr(JNIEnv* env, jobject, jstring javaPath, 141940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong jstring javaName) { 142090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars path(env, javaPath); 142190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (path.c_str() == NULL) { 142240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 142390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 142490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars name(env, javaName); 142590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (name.c_str() == NULL) { 142640afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 142790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 142840afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong 142940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong while (true) { 143040afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong // Get the current size of the named extended attribute. 143140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong ssize_t valueLength; 143240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong if ((valueLength = getxattr(path.c_str(), name.c_str(), NULL, 0)) < 0) { 143340afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong throwErrnoException(env, "getxattr"); 143440afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 143540afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong } 143640afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong 143740afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong // Create the actual byte array. 143840afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong std::vector<char> buf(valueLength); 143940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong if ((valueLength = getxattr(path.c_str(), name.c_str(), buf.data(), valueLength)) < 0) { 144040afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong if (errno == ERANGE) { 144140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong // The attribute value has changed since last getxattr call and buf no longer fits, 144240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong // try again. 144340afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong continue; 144440afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong } 144540afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong throwErrnoException(env, "getxattr"); 144640afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 144740afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong } 144840afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong jbyteArray array = env->NewByteArray(valueLength); 144940afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong if (array == NULL) { 145040afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return NULL; 145140afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong } 145240afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong env->SetByteArrayRegion(array, 0, valueLength, reinterpret_cast<const jbyte*>(buf.data())); 145340afa6bcd4652a16fe461a59f205dd0d65652118Yi Kong return array; 145490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 145590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey} 145690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey 14570965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_getifaddrs(JNIEnv* env, jobject) { 14586d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong static jmethodID ctor = env->GetMethodID(JniConstants::structIfaddrs, "<init>", 14596d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong "(Ljava/lang/String;ILjava/net/InetAddress;Ljava/net/InetAddress;Ljava/net/InetAddress;[B)V"); 14606d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 14616d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong ifaddrs* ifaddr; 14626d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong int rc = TEMP_FAILURE_RETRY(getifaddrs(&ifaddr)); 14636d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (rc == -1) { 14646d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong throwErrnoException(env, "getifaddrs"); 14656d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 14666d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 14676d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong std::unique_ptr<ifaddrs, decltype(&freeifaddrs)> ifaddrPtr(ifaddr, freeifaddrs); 14686d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 14696d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Count results so we know how to size the output array. 14706d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jint ifCount = 0; 14716d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong for (ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) { 14726d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong ++ifCount; 14736d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 14746d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 14756d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Prepare output array. 14766d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jobjectArray result = env->NewObjectArray(ifCount, JniConstants::structIfaddrs, NULL); 14776d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (result == NULL) { 14786d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 14796d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 14806d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 14816d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Traverse the list and populate the output array. 14826d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong int index = 0; 14836d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong for (ifaddrs* ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next, ++index) { 14846d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong TO_JAVA_STRING(name, ifa->ifa_name); 14856d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jint flags = ifa->ifa_flags; 14866d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong sockaddr_storage* interfaceAddr = 14876d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong reinterpret_cast<sockaddr_storage*>(ifa->ifa_addr); 14886d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong sockaddr_storage* netmaskAddr = 14896d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong reinterpret_cast<sockaddr_storage*>(ifa->ifa_netmask); 14906d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong sockaddr_storage* broadAddr = 14916d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong reinterpret_cast<sockaddr_storage*>(ifa->ifa_broadaddr); 14926d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 14936d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jobject addr, netmask, broad; 14946d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jbyteArray hwaddr = NULL; 14956d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (interfaceAddr != NULL) { 14966d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong switch (interfaceAddr->ss_family) { 14976d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong case AF_INET: 14986d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong case AF_INET6: 14996d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // IPv4 / IPv6. 15006d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // interfaceAddr and netmaskAddr are never null. 15016d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if ((addr = sockaddrToInetAddress(env, *interfaceAddr, NULL)) == NULL) { 15026d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15036d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15046d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if ((netmask = sockaddrToInetAddress(env, *netmaskAddr, NULL)) == NULL) { 15056d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15066d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15076d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (broadAddr != NULL && (ifa->ifa_flags & IFF_BROADCAST)) { 15086d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if ((broad = sockaddrToInetAddress(env, *broadAddr, NULL)) == NULL) { 15096d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15106d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15116d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } else { 15126d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong broad = NULL; 15136d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15146d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong break; 15156d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong case AF_PACKET: 15166d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Raw Interface. 15176d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong sockaddr_ll* sll = reinterpret_cast<sockaddr_ll*>(ifa->ifa_addr); 15186d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15196d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong bool allZero = true; 15206d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong for (int i = 0; i < sll->sll_halen; ++i) { 15216d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (sll->sll_addr[i] != 0) { 15226d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong allZero = false; 15236d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong break; 15246d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15256d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15266d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15276d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (!allZero) { 15286d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong hwaddr = env->NewByteArray(sll->sll_halen); 15296d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong if (hwaddr == NULL) { 15306d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return NULL; 15316d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15326d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong env->SetByteArrayRegion(hwaddr, 0, sll->sll_halen, 15336d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong reinterpret_cast<const jbyte*>(sll->sll_addr)); 15346d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15356d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong addr = netmask = broad = NULL; 15366d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong break; 15376d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15386d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } else { 15396d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // Preserve the entry even if the interface has no interface address. 15406d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // http://b/29243557/ 15416d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong addr = netmask = broad = NULL; 15426d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15436d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15446d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong jobject o = env->NewObject(JniConstants::structIfaddrs, ctor, name, flags, addr, netmask, 15456d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong broad, hwaddr); 15466d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong env->SetObjectArrayElement(result, index, o); 15476d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong } 15486d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15496d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return result; 15506d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong} 15516d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15520965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_if_indextoname(JNIEnv* env, jobject, jint index) { 1553a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char buf[IF_NAMESIZE]; 1554a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes char* name = if_indextoname(index, buf); 1555a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // if_indextoname(3) returns NULL on failure, which will come out of NewStringUTF unscathed. 1556a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes // There's no useful information in errno, so we don't bother throwing. Callers can null-check. 1557a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return env->NewStringUTF(name); 1558a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 1559a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 15600965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_if_nametoindex(JNIEnv* env, jobject, jstring name) { 15616d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong ScopedUtfChars cname(env, name); 1562507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong if (cname.c_str() == NULL) { 1563507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong return 0; 1564507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong } 1565507ae71a0387dbf4ec17e5eef27b9d3d6d691986Yi Kong 15666d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong // There's no useful information in errno, so we don't bother throwing. Callers can zero-check. 15676d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong return if_nametoindex(cname.c_str()); 15686d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong} 15696d1649c5b37b21ef2b690bc0f86306e19a32db02Yi Kong 15700965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_inet_pton(JNIEnv* env, jobject, jint family, jstring javaName) { 15711c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes ScopedUtfChars name(env, javaName); 15721c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes if (name.c_str() == NULL) { 15731c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 15741c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 15751c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes sockaddr_storage ss; 15761c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes memset(&ss, 0, sizeof(ss)); 1577fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes // sockaddr_in and sockaddr_in6 are at the same address, so we can use either here. 1578fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes void* dst = &reinterpret_cast<sockaddr_in*>(&ss)->sin_addr; 1579fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes if (inet_pton(family, name.c_str(), dst) != 1) { 15801c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes return NULL; 15811c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes } 1582fc041ff241f9a7556e72236f130de0215ecd17dbElliott Hughes ss.ss_family = family; 1583482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, ss, NULL); 15841c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes} 15851c039d71d3879f39e3a75b8788e656f7b4f88f08Elliott Hughes 15860965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_ioctlFlags(JNIEnv* env, jobject, jobject javaFd, jstring javaInterfaceName) { 158745348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong struct ifreq req; 158845348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong if (!fillIfreq(env, javaInterfaceName, req)) { 158945348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong return 0; 159045348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong } 159145348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong int fd = jniGetFDFromFileDescriptor(env, javaFd); 159245348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, SIOCGIFFLAGS, &req))); 159345348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong return req.ifr_flags; 159445348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong} 159545348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong 15960965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_ioctlInetAddress(JNIEnv* env, jobject, jobject javaFd, jint cmd, jstring javaInterfaceName) { 1597a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 1598a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 1599a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 1600a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 1601a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1602a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &req))); 1603a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (rc == -1) { 1604a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes return NULL; 1605a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes } 1606482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes return sockaddrToInetAddress(env, reinterpret_cast<sockaddr_storage&>(req.ifr_addr), NULL); 1607a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes} 1608a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes 16090965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_ioctlInt(JNIEnv* env, jobject, jobject javaFd, jint cmd, jobject javaArg) { 16108b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // This is complicated because ioctls may return their result by updating their argument 16118b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // or via their return value, so we need to support both. 1612461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 16138b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 16148b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jint arg = env->GetIntField(javaArg, valueFid); 16158b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int rc = throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, cmd, &arg))); 16168b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (!env->ExceptionCheck()) { 16178b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetIntField(javaArg, valueFid, arg); 16188b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 16198b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return rc; 1620461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes} 1621461d0d860814c68154d8dd06d24f94118f33d28aElliott Hughes 16220965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_ioctlMTU(JNIEnv* env, jobject, jobject javaFd, jstring javaInterfaceName) { 162345348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong struct ifreq req; 162445348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong if (!fillIfreq(env, javaInterfaceName, req)) { 162545348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong return 0; 162645348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong } 162745348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong int fd = jniGetFDFromFileDescriptor(env, javaFd); 162845348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong throwIfMinusOne(env, "ioctl", TEMP_FAILURE_RETRY(ioctl(fd, SIOCGIFMTU, &req))); 162945348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong return req.ifr_mtu; 163045348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong} 163145348e170536651c0e5f8d5cb0319ba232a1b833Yi Kong 16320965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jboolean Linux_isatty(JNIEnv* env, jobject, jobject javaFd) { 16339a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1634bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig return TEMP_FAILURE_RETRY(isatty(fd)) == 1; 16359a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes} 16369a3f363523000704205df288f8b6f2f48c0d8563Elliott Hughes 16370965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_kill(JNIEnv* env, jobject, jint pid, jint sig) { 1638a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes throwIfMinusOne(env, "kill", TEMP_FAILURE_RETRY(kill(pid, sig))); 1639a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes} 1640a5fb706fe4a6dbeaaf4cb1f8bbc2c68b0a2a3f3cElliott Hughes 16410965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_lchown(JNIEnv* env, jobject, jstring javaPath, jint uid, jint gid) { 164244f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes ScopedUtfChars path(env, javaPath); 164344f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes if (path.c_str() == NULL) { 164444f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return; 164544f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes } 164644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes throwIfMinusOne(env, "lchown", TEMP_FAILURE_RETRY(lchown(path.c_str(), uid, gid))); 164744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 164844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 16490965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_link(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 165004428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 165104428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (oldPath.c_str() == NULL) { 165204428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 165304428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 165404428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 165504428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes if (newPath.c_str() == NULL) { 165604428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes return; 165704428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes } 165804428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes throwIfMinusOne(env, "link", TEMP_FAILURE_RETRY(link(oldPath.c_str(), newPath.c_str()))); 165904428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes} 166004428d61d7000e17ab21d08a1d672c34eb68f6e2Elliott Hughes 16610965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_listen(JNIEnv* env, jobject, jobject javaFd, jint backlog) { 1662e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1663e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes throwIfMinusOne(env, "listen", TEMP_FAILURE_RETRY(listen(fd, backlog))); 1664e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes} 1665e1502d64e937001636fca3d62b2552ef2a34d05fElliott Hughes 16660965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_listxattr(JNIEnv* env, jobject, jstring javaPath) { 166755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong ScopedUtfChars path(env, javaPath); 166855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong if (path.c_str() == NULL) { 166955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong return NULL; 167055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 167155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 167255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong while (true) { 167355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // Get the current size of the named extended attribute. 167455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong ssize_t valueLength; 167555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong if ((valueLength = listxattr(path.c_str(), NULL, 0)) < 0) { 167655dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong throwErrnoException(env, "listxattr"); 167755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong return NULL; 167855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 167955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 168055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // Create the actual byte array. 168155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong std::string buf(valueLength, '\0'); 168255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong if ((valueLength = listxattr(path.c_str(), &buf[0], valueLength)) < 0) { 168355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong if (errno == ERANGE) { 168455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // The attribute value has changed since last listxattr call and buf no longer fits, 168555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // try again. 168655dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong continue; 168755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 168855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong throwErrnoException(env, "listxattr"); 168955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong return NULL; 169055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 169155dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 169255dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong // Split the output by '\0'. 169355dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong buf.resize(valueLength > 0 ? valueLength - 1 : 0); // Remove the trailing NULL character. 169455dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong std::string delim("\0", 1); 169555dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong auto xattrs = android::base::Split(buf, delim); 169655dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 169755dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong return toStringArray(env, xattrs); 169855dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong } 169955dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong} 170055dd377d62cf780df94d8e0198b66e99456b6f50Yi Kong 17010965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jlong Linux_lseek(JNIEnv* env, jobject, jobject javaFd, jlong offset, jint whence) { 1702dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 17037e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return throwIfMinusOne(env, "lseek", TEMP_FAILURE_RETRY(lseek64(fd, offset, whence))); 1704dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes} 1705dedaccdfa07c370a58cba08b096133ad9eec0ec3Elliott Hughes 17060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_lstat(JNIEnv* env, jobject, jstring javaPath) { 170747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, true); 170847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 170947cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 17100965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_mincore(JNIEnv* env, jobject, jlong address, jlong byteCount, jbyteArray javaVector) { 17110f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes ScopedByteArrayRW vector(env, javaVector); 17120f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes if (vector.get() == NULL) { 17130f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes return; 17140f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes } 17150f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 17160f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes unsigned char* vec = reinterpret_cast<unsigned char*>(vector.get()); 17170f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes throwIfMinusOne(env, "mincore", TEMP_FAILURE_RETRY(mincore(ptr, byteCount, vec))); 17180f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes} 17190f746ff511162add42eeabaf14ba70ace874c6f4Elliott Hughes 17200965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_mkdir(JNIEnv* env, jobject, jstring javaPath, jint mode) { 1721c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 1722c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 1723c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 1724c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 1725c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "mkdir", TEMP_FAILURE_RETRY(mkdir(path.c_str(), mode))); 1726c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 1727c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 17280965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_mkfifo(JNIEnv* env, jobject, jstring javaPath, jint mode) { 1729f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller ScopedUtfChars path(env, javaPath); 1730f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller if (path.c_str() == NULL) { 1731f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return; 1732f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller } 1733f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller throwIfMinusOne(env, "mkfifo", TEMP_FAILURE_RETRY(mkfifo(path.c_str(), mode))); 1734f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller} 1735f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller 17360965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_mlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 17377e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 17387e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "mlock", TEMP_FAILURE_RETRY(mlock(ptr, byteCount))); 17397e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 17407e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 17410965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jlong Linux_mmap(JNIEnv* env, jobject, jlong address, jlong byteCount, jint prot, jint flags, jobject javaFd, jlong offset) { 17427e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 17437e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* suggestedPtr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 174413a70e6c04157064fc8a61ecfcb1d863f29c239dYi Kong void* ptr = mmap64(suggestedPtr, byteCount, prot, flags, fd, offset); 17457e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes if (ptr == MAP_FAILED) { 17467e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "mmap"); 17477e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes } 17487e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes return static_cast<jlong>(reinterpret_cast<uintptr_t>(ptr)); 17497e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 17507e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 17510965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_msync(JNIEnv* env, jobject, jlong address, jlong byteCount, jint flags) { 17527e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 17537e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "msync", TEMP_FAILURE_RETRY(msync(ptr, byteCount, flags))); 17547e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 17557e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 17560965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_munlock(JNIEnv* env, jobject, jlong address, jlong byteCount) { 17577e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 17587e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes throwIfMinusOne(env, "munlock", TEMP_FAILURE_RETRY(munlock(ptr, byteCount))); 17597e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes} 17607e13c0f05ac9e7c55682d10e953dd4cbd5e6107cElliott Hughes 17610965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_munmap(JNIEnv* env, jobject, jlong address, jlong byteCount) { 17627e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes void* ptr = reinterpret_cast<void*>(static_cast<uintptr_t>(address)); 17637e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwIfMinusOne(env, "munmap", TEMP_FAILURE_RETRY(munmap(ptr, byteCount))); 17647e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes} 17657e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes 17660965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_open(JNIEnv* env, jobject, jstring javaPath, jint flags, jint mode) { 17670ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes ScopedUtfChars path(env, javaPath); 17680ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes if (path.c_str() == NULL) { 17690ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return NULL; 17700ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes } 17710ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes int fd = throwIfMinusOne(env, "open", TEMP_FAILURE_RETRY(open(path.c_str(), flags, mode))); 17720ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 17730ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes} 17740ac77ac8e915bff1a863e371f9b363033f9cf759Elliott Hughes 17750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobjectArray Linux_pipe2(JNIEnv* env, jobject, jint flags __unused) { 177641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes int fds[2]; 177757a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak int pipe2_result = throwIfMinusOne(env, "pipe2", TEMP_FAILURE_RETRY(pipe2(&fds[0], flags))); 177857a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak if (pipe2_result == -1) { 177957a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak return NULL; 178057a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak } 178141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes jobjectArray result = env->NewObjectArray(2, JniConstants::fileDescriptorClass, NULL); 178241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (result == NULL) { 178341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 178441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 178541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes for (int i = 0; i < 2; ++i) { 178641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes ScopedLocalRef<jobject> fd(env, jniCreateFileDescriptor(env, fds[i])); 178741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (fd.get() == NULL) { 178841f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 178941f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 179041f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes env->SetObjectArrayElement(result, i, fd.get()); 179141f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes if (env->ExceptionCheck()) { 179241f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return NULL; 179341f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 179441f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes } 179541f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes return result; 179641f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes} 179741f0605d2c809bd9bc1c0fb68d86b49a0f59b6c5Elliott Hughes 17980965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_poll(JNIEnv* env, jobject, jobjectArray javaStructs, jint timeoutMs) { 179970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID fdFid = env->GetFieldID(JniConstants::structPollfdClass, "fd", "Ljava/io/FileDescriptor;"); 180070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID eventsFid = env->GetFieldID(JniConstants::structPollfdClass, "events", "S"); 180170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes static jfieldID reventsFid = env->GetFieldID(JniConstants::structPollfdClass, "revents", "S"); 180270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 18035d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Turn the Java android.system.StructPollfd[] into a C++ struct pollfd[]. 180470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t arrayLength = env->GetArrayLength(javaStructs); 1805b3aacde3d8af759ee4a7b395c636ea360547d92dIan Rogers std::unique_ptr<struct pollfd[]> fds(new struct pollfd[arrayLength]); 180670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes memset(fds.get(), 0, sizeof(struct pollfd) * arrayLength); 180770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes size_t count = 0; // Some trailing array elements may be irrelevant. (See below.) 180870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes for (size_t i = 0; i < arrayLength; ++i) { 180970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 181070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaStruct.get() == NULL) { 181170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We allow trailing nulls in the array for caller convenience. 181270c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 181370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaFd(env, env->GetObjectField(javaStruct.get(), fdFid)); 181470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (javaFd.get() == NULL) { 181570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes break; // We also allow callers to just clear the fd field (this is what Selector does). 181670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 181770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].fd = jniGetFDFromFileDescriptor(env, javaFd.get()); 181870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes fds[count].events = env->GetShortField(javaStruct.get(), eventsFid); 181970c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ++count; 182070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 182170c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 1822f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller std::vector<AsynchronousCloseMonitor*> monitors; 1823796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < count; ++i) { 1824f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller monitors.push_back(new AsynchronousCloseMonitor(fds[i].fd)); 1825796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 1826fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1827fa542091e45db699a937c5ac0191194405107827Elliott Hughes int rc; 1828fa542091e45db699a937c5ac0191194405107827Elliott Hughes while (true) { 1829fa542091e45db699a937c5ac0191194405107827Elliott Hughes timespec before; 1830fa542091e45db699a937c5ac0191194405107827Elliott Hughes clock_gettime(CLOCK_MONOTONIC, &before); 1831fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1832fa542091e45db699a937c5ac0191194405107827Elliott Hughes rc = poll(fds.get(), count, timeoutMs); 1833fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (rc >= 0 || errno != EINTR) { 1834fa542091e45db699a937c5ac0191194405107827Elliott Hughes break; 1835fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1836fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1837fa542091e45db699a937c5ac0191194405107827Elliott Hughes // We got EINTR. Work out how much of the original timeout is still left. 1838fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (timeoutMs > 0) { 1839fa542091e45db699a937c5ac0191194405107827Elliott Hughes timespec now; 1840fa542091e45db699a937c5ac0191194405107827Elliott Hughes clock_gettime(CLOCK_MONOTONIC, &now); 1841fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1842fa542091e45db699a937c5ac0191194405107827Elliott Hughes timespec diff; 1843fa542091e45db699a937c5ac0191194405107827Elliott Hughes diff.tv_sec = now.tv_sec - before.tv_sec; 1844fa542091e45db699a937c5ac0191194405107827Elliott Hughes diff.tv_nsec = now.tv_nsec - before.tv_nsec; 1845fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (diff.tv_nsec < 0) { 1846fa542091e45db699a937c5ac0191194405107827Elliott Hughes --diff.tv_sec; 1847fa542091e45db699a937c5ac0191194405107827Elliott Hughes diff.tv_nsec += 1000000000; 1848fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1849fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1850fa542091e45db699a937c5ac0191194405107827Elliott Hughes jint diffMs = diff.tv_sec * 1000 + diff.tv_nsec / 1000000; 1851fa542091e45db699a937c5ac0191194405107827Elliott Hughes if (diffMs >= timeoutMs) { 1852fa542091e45db699a937c5ac0191194405107827Elliott Hughes rc = 0; // We have less than 1ms left anyway, so just time out. 1853fa542091e45db699a937c5ac0191194405107827Elliott Hughes break; 1854fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1855fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1856fa542091e45db699a937c5ac0191194405107827Elliott Hughes timeoutMs -= diffMs; 1857fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1858fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 1859fa542091e45db699a937c5ac0191194405107827Elliott Hughes 1860796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes for (size_t i = 0; i < monitors.size(); ++i) { 1861796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes delete monitors[i]; 1862796f0d5a4e7b83c3efc5e587b6766977dc20b0c3Elliott Hughes } 186370c820401677ca251ad09ac64cc23c760764e75dElliott Hughes if (rc == -1) { 186470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes throwErrnoException(env, "poll"); 186570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return -1; 186670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 186770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 18685d930cadc8f62aee5f18e7921296fe66a54f18abElliott Hughes // Update the revents fields in the Java android.system.StructPollfd[]. 186998b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes for (size_t i = 0; i < count; ++i) { 187070c820401677ca251ad09ac64cc23c760764e75dElliott Hughes ScopedLocalRef<jobject> javaStruct(env, env->GetObjectArrayElement(javaStructs, i)); 187198b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes if (javaStruct.get() == NULL) { 187298b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes return -1; 187398b23d4d9894d21be1eacf498f48aeb707ca1e41Elliott Hughes } 187470c820401677ca251ad09ac64cc23c760764e75dElliott Hughes env->SetShortField(javaStruct.get(), reventsFid, fds[i].revents); 187570c820401677ca251ad09ac64cc23c760764e75dElliott Hughes } 187670c820401677ca251ad09ac64cc23c760764e75dElliott Hughes return rc; 187770c820401677ca251ad09ac64cc23c760764e75dElliott Hughes} 187870c820401677ca251ad09ac64cc23c760764e75dElliott Hughes 18790965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_posix_fallocate(JNIEnv* env, jobject, jobject javaFd __unused, 18803deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jlong offset __unused, jlong length __unused) { 188111f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 1882fa542091e45db699a937c5ac0191194405107827Elliott Hughes while ((errno = posix_fallocate64(fd, offset, length)) == EINTR) { 1883fa542091e45db699a937c5ac0191194405107827Elliott Hughes } 188411f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes if (errno != 0) { 188511f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes throwErrnoException(env, "posix_fallocate"); 188611f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes } 188711f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes} 188811f07d30d2e344b48f132ec6ed105d85423052c2Elliott Hughes 18890965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_prctl(JNIEnv* env, jobject, jint option __unused, jlong arg2 __unused, 18903deabd220cf7b1ca0824987e90b8ecc07087f05aIan Rogers jlong arg3 __unused, jlong arg4 __unused, jlong arg5 __unused) { 1891fa542091e45db699a937c5ac0191194405107827Elliott Hughes int result = TEMP_FAILURE_RETRY(prctl(static_cast<int>(option), 1892fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg2), 1893fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg3), 1894fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg4), 1895fa542091e45db699a937c5ac0191194405107827Elliott Hughes static_cast<unsigned long>(arg5))); 18965215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich return throwIfMinusOne(env, "prctl", result); 18975215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich} 18985215e4c0db7530519981f1e505e6db82401802f2Nick Kralevich 18990965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_preadBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1900e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 1901e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1902e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1903e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1904f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pread64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1905e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1906e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 19070965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_pwriteBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount, jlong offset) { 1908e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 1909e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes if (bytes.get() == NULL) { 1910e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes return -1; 1911e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes } 1912f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, pwrite64, javaFd, bytes.get() + byteOffset, byteCount, offset); 1913e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes} 1914e3b6fa2bf357f2712ab2ee9e8487f157595ea0c7Elliott Hughes 19150965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_readBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount) { 19160568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 191726c7025a7a919044771fb89031161bd26fe03032Elliott Hughes if (bytes.get() == NULL) { 191826c7025a7a919044771fb89031161bd26fe03032Elliott Hughes return -1; 191926c7025a7a919044771fb89031161bd26fe03032Elliott Hughes } 1920f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, read, javaFd, bytes.get() + byteOffset, byteCount); 192126c7025a7a919044771fb89031161bd26fe03032Elliott Hughes} 192226c7025a7a919044771fb89031161bd26fe03032Elliott Hughes 19230965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_readlink(JNIEnv* env, jobject, jstring javaPath) { 19240b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes ScopedUtfChars path(env, javaPath); 19250b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes if (path.c_str() == NULL) { 19260b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 19270b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 19280b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 19290b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes std::string result; 19302cb2851f4a528e3e6e3e59cf3e854c2abf9f1811Elliott Hughes if (!android::base::Readlink(path.c_str(), &result)) { 19310b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes throwErrnoException(env, "readlink"); 19320b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return NULL; 19330b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes } 19340b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes return env->NewStringUTF(result.c_str()); 19350b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes} 19360b6b3e10459fc3a3f4dd280dab8d4a145f7bf2f0Elliott Hughes 19370965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_realpath(JNIEnv* env, jobject, jstring javaPath) { 19385d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath ScopedUtfChars path(env, javaPath); 19395d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath if (path.c_str() == NULL) { 19405d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath return NULL; 19415d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath } 19425d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath 19435d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath std::unique_ptr<char, c_deleter> real_path(realpath(path.c_str(), nullptr)); 19445d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath if (real_path.get() == nullptr) { 19455d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath throwErrnoException(env, "realpath"); 19465d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath return NULL; 19475d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath } 19485d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath 19495d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath return env->NewStringUTF(real_path.get()); 19505d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath} 19515d45c289afe04d12f41612e33e8df83e5db650d8Narayan Kamath 19520965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_readv(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 19538dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRW> ioVec(env, env->GetArrayLength(buffers)); 1954bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 1955bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 1956bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 1957f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, readv, javaFd, ioVec.get(), ioVec.size()); 1958bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 1959bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 19600965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_recvfromBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetSocketAddress) { 196123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes ScopedBytesRW bytes(env, javaBytes); 196223ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes if (bytes.get() == NULL) { 196323ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return -1; 196423ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes } 196523ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr_storage ss; 196623ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t sl = sizeof(ss); 196723ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes memset(&ss, 0, sizeof(ss)); 196823ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes sockaddr* from = (javaInetSocketAddress != NULL) ? reinterpret_cast<sockaddr*>(&ss) : NULL; 196923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes socklen_t* fromLength = (javaInetSocketAddress != NULL) ? &sl : 0; 19701124a814d698ed6fd68ac501f5dddfa103d656fdElliott Hughes jint recvCount = NET_FAILURE_RETRY(env, ssize_t, recvfrom, javaFd, bytes.get() + byteOffset, byteCount, flags, from, fromLength); 19716dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong if (recvCount >= 0) { 19726dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong // The socket may have performed orderly shutdown and recvCount would return 0 (see man 2 19736dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong // recvfrom), in which case ss.ss_family == AF_UNIX and fillInetSocketAddress would fail. 19746dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong // Don't fill in the address if recvfrom didn't succeed. http://b/33483694 19756dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong if (ss.ss_family == AF_INET || ss.ss_family == AF_INET6) { 19766dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong fillInetSocketAddress(env, javaInetSocketAddress, ss); 19776dd21e692ae87b75e49b23ffbecc6964604f466aYi Kong } 19780ab1a26ca767ae36fbbe27b62893670b208fa494Neil Fuller } 197923ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes return recvCount; 198023ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes} 198123ec09188303a874b3b391f96ae0a29af002bff9Elliott Hughes 19820965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_remove(JNIEnv* env, jobject, jstring javaPath) { 1983c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes ScopedUtfChars path(env, javaPath); 1984c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes if (path.c_str() == NULL) { 1985c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes return; 1986c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes } 1987c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes throwIfMinusOne(env, "remove", TEMP_FAILURE_RETRY(remove(path.c_str()))); 1988c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes} 1989c7fa20701d5e9398c38f4615ed293acfce1c0cf6Elliott Hughes 19900965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_removexattr(JNIEnv* env, jobject, jstring javaPath, jstring javaName) { 199190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars path(env, javaPath); 199290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (path.c_str() == NULL) { 199390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 199490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 199590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars name(env, javaName); 199690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (name.c_str() == NULL) { 199790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 199890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 199990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey 200090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey int res = removexattr(path.c_str(), name.c_str()); 200190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (res < 0) { 200290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey throwErrnoException(env, "removexattr"); 200390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 200490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey} 200590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey 20060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_rename(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 2007a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 2008a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 2009a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 2010a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 2011a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 2012a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 2013a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 2014a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 2015a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "rename", TEMP_FAILURE_RETRY(rename(oldPath.c_str(), newPath.c_str()))); 2016a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 2017a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 20180965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jlong Linux_sendfile(JNIEnv* env, jobject, jobject javaOutFd, jobject javaInFd, jobject javaOffset, jlong byteCount) { 20198b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int outFd = jniGetFDFromFileDescriptor(env, javaOutFd); 20208b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes int inFd = jniGetFDFromFileDescriptor(env, javaInFd); 20218b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableLongClass, "value", "J"); 20228b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t offset = 0; 20238b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes off_t* offsetPtr = NULL; 20248b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 20258b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes // TODO: fix bionic so we can have a 64-bit off_t! 20268b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offset = env->GetLongField(javaOffset, valueFid); 20278b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes offsetPtr = &offset; 20288b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 20298b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes jlong result = throwIfMinusOne(env, "sendfile", TEMP_FAILURE_RETRY(sendfile(outFd, inFd, offsetPtr, byteCount))); 203057a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak if (result == -1) { 203157a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak return -1; 203257a65ad7f0be5b9d0364d36208752f66e9f13596Przemyslaw Szczepaniak } 20338b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes if (javaOffset != NULL) { 20348b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes env->SetLongField(javaOffset, valueFid, offset); 20358b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes } 20368b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes return result; 20378b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes} 20388b15dcc5890963edad4dfcf558cc16027c7985e5Elliott Hughes 20390965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_sendtoBytes(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaInetAddress, jint port) { 204090d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes ScopedBytesRO bytes(env, javaBytes); 204190d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes if (bytes.get() == NULL) { 204290d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes return -1; 204390d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes } 2044b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti 2045b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti return NET_IPV4_FALLBACK(env, ssize_t, sendto, javaFd, javaInetAddress, port, 2046b2a9923fa2006e384013734d3e1c6a7fbe3d9074Lorenzo Colitti NULL_ADDR_OK, bytes.get() + byteOffset, byteCount, flags); 204790d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes} 204890d96a4f168b7e56cff54dc94dca2f3cde60ebcdElliott Hughes 20490965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_sendtoBytesSocketAddress(JNIEnv* env, jobject, jobject javaFd, jobject javaBytes, jint byteOffset, jint byteCount, jint flags, jobject javaSocketAddress) { 2050f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti if (env->IsInstanceOf(javaSocketAddress, JniConstants::inetSocketAddressClass)) { 2051f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti // Use the InetAddress version so we get the benefit of NET_IPV4_FALLBACK. 2052f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jobject javaInetAddress; 2053f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti jint port; 2054f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetSocketAddressToInetAddressAndPort(env, javaSocketAddress, javaInetAddress, port); 20550965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe return Linux_sendtoBytes(env, NULL, javaFd, javaBytes, byteOffset, byteCount, flags, 2056f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti javaInetAddress, port); 2057f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti } 2058f5fc4ade3ab082f545e2aafdb1942c1f14e0df5dLorenzo Colitti 2059a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti ScopedBytesRO bytes(env, javaBytes); 2060a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti if (bytes.get() == NULL) { 2061a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti return -1; 2062a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti } 2063a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti 2064a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti sockaddr_storage ss; 2065a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti socklen_t sa_len; 2066a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti if (!javaSocketAddressToSockaddr(env, javaSocketAddress, ss, sa_len)) { 2067a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti return -1; 2068a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti } 2069a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti 2070a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti const sockaddr* sa = reinterpret_cast<const sockaddr*>(&ss); 2071a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti // We don't need the return value because we'll already have thrown. 2072a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti return NET_FAILURE_RETRY(env, ssize_t, sendto, javaFd, bytes.get() + byteOffset, byteCount, flags, sa, sa_len); 2073a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti} 2074a8b7587c5001db3489c64ac1d16c254a683f76bdLorenzo Colitti 20750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setegid(JNIEnv* env, jobject, jint egid) { 2076396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setegid", TEMP_FAILURE_RETRY(setegid(egid))); 2077396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 2078396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 20790965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setenv(JNIEnv* env, jobject, jstring javaName, jstring javaValue, jboolean overwrite) { 2080895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 2081895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 2082895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 2083895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 2084895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars value(env, javaValue); 2085895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (value.c_str() == NULL) { 2086895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 2087895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 2088895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "setenv", setenv(name.c_str(), value.c_str(), overwrite)); 2089895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 2090895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 20910965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_seteuid(JNIEnv* env, jobject, jint euid) { 2092396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "seteuid", TEMP_FAILURE_RETRY(seteuid(euid))); 2093396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 2094396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 20950965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setgid(JNIEnv* env, jobject, jint gid) { 2096396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setgid", TEMP_FAILURE_RETRY(setgid(gid))); 2097396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 2098396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 20990965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setpgid(JNIEnv* env, jobject, jint pid, int pgid) { 21008f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes throwIfMinusOne(env, "setpgid", TEMP_FAILURE_RETRY(setpgid(pid, pgid))); 21018f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 21028f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 21030965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setregid(JNIEnv* env, jobject, jint rgid, int egid) { 21048f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes throwIfMinusOne(env, "setregid", TEMP_FAILURE_RETRY(setregid(rgid, egid))); 21058f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 21068f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 21070965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setreuid(JNIEnv* env, jobject, jint ruid, int euid) { 21088f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes throwIfMinusOne(env, "setreuid", TEMP_FAILURE_RETRY(setreuid(ruid, euid))); 21098f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes} 21108f0f2ac7fcd8f366a78cc51181d065ab93385e46Elliott Hughes 21110965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_setsid(JNIEnv* env, jobject) { 21126c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes return throwIfMinusOne(env, "setsid", TEMP_FAILURE_RETRY(setsid())); 21136c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes} 21146c9b5377550a9649ed1532d1fcdfeba116c74eadElliott Hughes 21150965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptByte(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 2116c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2117c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes u_char byte = value; 2118c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &byte, sizeof(byte)))); 2119c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 2120c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 21210965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptIfreq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jstring javaInterfaceName) { 2122a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes struct ifreq req; 2123a37e971343883bb582a93ffbd9f0ba84f10e55baElliott Hughes if (!fillIfreq(env, javaInterfaceName, req)) { 2124b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes return; 2125b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes } 2126b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2127b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 2128b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 2129b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 21300965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptInt(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 2131454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2132454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 2133454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 2134454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 21350965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptIpMreqn(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jint value) { 2136b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes ip_mreqn req; 2137b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes memset(&req, 0, sizeof(req)); 2138b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes req.imr_ifindex = value; 2139b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2140b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req)))); 2141b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes} 2142b974666d79ebc392b37ec1ae83aae57ae6331c08Elliott Hughes 21430965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptGroupReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupReq) { 21448ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes struct group_req req; 21458ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memset(&req, 0, sizeof(req)); 2146438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 2147438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grInterfaceFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_interface", "I"); 21488ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req.gr_interface = env->GetIntField(javaGroupReq, grInterfaceFid); 2149438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Get the IPv4 or IPv6 multicast address to join or leave. 2150438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes static jfieldID grGroupFid = env->GetFieldID(JniConstants::structGroupReqClass, "gr_group", "Ljava/net/InetAddress;"); 2151e9f12043a1e2a29c60779cdb55c58eb156963570Elliott Hughes ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupReq, grGroupFid)); 2152482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes socklen_t sa_len; 2153482a3fc5635ac431b8a7476d7fe3397af4c2e8ecElliott Hughes if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gr_group, sa_len)) { 2154438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes return; 2155438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 2156438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 2157438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 21588ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 2159438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes if (rc == -1 && errno == EINVAL) { 2160438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // Maybe we're a 32-bit binary talking to a 64-bit kernel? 2161438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes // glibc doesn't automatically handle this. 2162df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 21639634b569a92841f32268907c88c408f22cb00486Elliott Hughes struct group_req64 { 2164438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t gr_interface; 2165438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes uint32_t my_padding; 2166438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes sockaddr_storage gr_group; 2167438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes }; 21688ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes group_req64 req64; 21698ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes req64.gr_interface = req.gr_interface; 21708ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes memcpy(&req64.gr_group, &req.gr_group, sizeof(req.gr_group)); 21718ecbb3f6a89983adb1a085469befc70488f4f04fElliott Hughes rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 2172438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes } 2173438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes throwIfMinusOne(env, "setsockopt", rc); 2174438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes} 2175df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 21760965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptGroupSourceReq(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaGroupSourceReq) { 2177df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller socklen_t sa_len; 2178df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller struct group_source_req req; 2179df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memset(&req, 0, sizeof(req)); 2180df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 2181df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrInterfaceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_interface", "I"); 2182df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller req.gsr_interface = env->GetIntField(javaGroupSourceReq, gsrInterfaceFid); 2183df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Get the IPv4 or IPv6 multicast address to join or leave. 2184df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrGroupFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_group", "Ljava/net/InetAddress;"); 2185df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller ScopedLocalRef<jobject> javaGroup(env, env->GetObjectField(javaGroupSourceReq, gsrGroupFid)); 2186df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (!inetAddressToSockaddrVerbatim(env, javaGroup.get(), 0, req.gsr_group, sa_len)) { 2187df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller return; 2188df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 2189df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 2190df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Get the IPv4 or IPv6 multicast address to add to the filter. 2191df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller static jfieldID gsrSourceFid = env->GetFieldID(JniConstants::structGroupSourceReqClass, "gsr_source", "Ljava/net/InetAddress;"); 2192df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller ScopedLocalRef<jobject> javaSource(env, env->GetObjectField(javaGroupSourceReq, gsrSourceFid)); 2193df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (!inetAddressToSockaddrVerbatim(env, javaSource.get(), 0, req.gsr_source, sa_len)) { 2194df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller return; 2195df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 2196df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller 2197df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller int fd = jniGetFDFromFileDescriptor(env, javaFd); 2198df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller int rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req, sizeof(req))); 2199df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller if (rc == -1 && errno == EINVAL) { 2200df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // Maybe we're a 32-bit binary talking to a 64-bit kernel? 2201df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // glibc doesn't automatically handle this. 2202df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller // http://sourceware.org/bugzilla/show_bug.cgi?id=12080 2203df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller struct group_source_req64 { 2204df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller uint32_t gsr_interface; 2205df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller uint32_t my_padding; 2206df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller sockaddr_storage gsr_group; 2207df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller sockaddr_storage gsr_source; 2208df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller }; 2209df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller group_source_req64 req64; 2210df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller req64.gsr_interface = req.gsr_interface; 2211df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memcpy(&req64.gsr_group, &req.gsr_group, sizeof(req.gsr_group)); 2212df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller memcpy(&req64.gsr_source, &req.gsr_source, sizeof(req.gsr_source)); 2213df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller rc = TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &req64, sizeof(req64))); 2214df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller } 2215df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller throwIfMinusOne(env, "setsockopt", rc); 2216df29508a7aa622f265aaebdc472eb7d679185ebbNeil Fuller} 2217438cb9e440d250c8aa5daf4fae0c400dce8b1499Elliott Hughes 22180965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptLinger(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaLinger) { 2219c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lOnoffFid = env->GetFieldID(JniConstants::structLingerClass, "l_onoff", "I"); 2220c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID lLingerFid = env->GetFieldID(JniConstants::structLingerClass, "l_linger", "I"); 2221c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2222c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct linger value; 2223c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_onoff = env->GetIntField(javaLinger, lOnoffFid); 2224c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes value.l_linger = env->GetIntField(javaLinger, lLingerFid); 2225c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 2226c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 2227c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 22280965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setsockoptTimeval(JNIEnv* env, jobject, jobject javaFd, jint level, jint option, jobject javaTimeval) { 2229c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvSecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_sec", "J"); 2230c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes static jfieldID tvUsecFid = env->GetFieldID(JniConstants::structTimevalClass, "tv_usec", "J"); 2231c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2232c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes struct timeval value; 223339fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_sec = env->GetLongField(javaTimeval, tvSecFid); 223439fd5e164f93ab821841aa4d1fac09055c102b8bElliott Hughes value.tv_usec = env->GetLongField(javaTimeval, tvUsecFid); 2235c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes throwIfMinusOne(env, "setsockopt", TEMP_FAILURE_RETRY(setsockopt(fd, level, option, &value, sizeof(value)))); 2236c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes} 2237c63f0d4e80a9fd3bdf99cd438d108b750226736aElliott Hughes 22380965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setuid(JNIEnv* env, jobject, jint uid) { 2239396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes throwIfMinusOne(env, "setuid", TEMP_FAILURE_RETRY(setuid(uid))); 2240396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes} 2241396a9c666da353b910b515d12eb1c43adfddb0c8Elliott Hughes 22420965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_setxattr(JNIEnv* env, jobject, jstring javaPath, jstring javaName, 224390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey jbyteArray javaValue, jint flags) { 224490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars path(env, javaPath); 224590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (path.c_str() == NULL) { 224690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 224790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 224890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedUtfChars name(env, javaName); 224990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (name.c_str() == NULL) { 225090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 225190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 225290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey ScopedBytesRO value(env, javaValue); 225390246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (value.get() == NULL) { 225490246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey return; 225590246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 225690246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey size_t valueLength = env->GetArrayLength(javaValue); 225790246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey int res = setxattr(path.c_str(), name.c_str(), value.get(), valueLength, flags); 225890246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey if (res < 0) { 225990246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey throwErrnoException(env, "setxattr"); 226090246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey } 226190246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey} 226290246a0ae7117d780e077c9e84cdb73ff5b44af7Jeff Sharkey 22630965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_shutdown(JNIEnv* env, jobject, jobject javaFd, jint how) { 226459e4744d27231f260271dbbca406e0cc39768116Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 226559e4744d27231f260271dbbca406e0cc39768116Elliott Hughes throwIfMinusOne(env, "shutdown", TEMP_FAILURE_RETRY(shutdown(fd, how))); 226659e4744d27231f260271dbbca406e0cc39768116Elliott Hughes} 226759e4744d27231f260271dbbca406e0cc39768116Elliott Hughes 22680965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_socket(JNIEnv* env, jobject, jint domain, jint type, jint protocol) { 226900bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti if (domain == AF_PACKET) { 227000bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti protocol = htons(protocol); // Packet sockets specify the protocol in host byte order. 227100bb2a5e5d619cbfd172793ca9bf7130192765ebLorenzo Colitti } 2272454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes int fd = throwIfMinusOne(env, "socket", TEMP_FAILURE_RETRY(socket(domain, type, protocol))); 2273454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes return fd != -1 ? jniCreateFileDescriptor(env, fd) : NULL; 2274454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes} 2275454a95f6a28855aa3c88d168b15a45bf315efc99Elliott Hughes 22760965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_socketpair(JNIEnv* env, jobject, jint domain, jint type, jint protocol, jobject javaFd1, jobject javaFd2) { 22773218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int fds[2]; 22783218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes int rc = throwIfMinusOne(env, "socketpair", TEMP_FAILURE_RETRY(socketpair(domain, type, protocol, fds))); 22793218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes if (rc != -1) { 22803218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd1, fds[0]); 22813218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes jniSetFileDescriptorOfFD(env, javaFd2, fds[1]); 22823218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes } 22833218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes} 22843218082325b6b8713a8ac15731482e3da86a7df9Elliott Hughes 22850965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_stat(JNIEnv* env, jobject, jstring javaPath) { 228647cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes return doStat(env, javaPath, false); 228747cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes} 228847cb338d43f75dd998b29caaaa9446c5705217d1Elliott Hughes 22890965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_statvfs(JNIEnv* env, jobject, jstring javaPath) { 229059fa7163774d6930a174bc038414a4b780581957Elliott Hughes ScopedUtfChars path(env, javaPath); 229159fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (path.c_str() == NULL) { 229259fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 229359fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 2294721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes struct statvfs sb; 2295721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes int rc = TEMP_FAILURE_RETRY(statvfs(path.c_str(), &sb)); 229659fa7163774d6930a174bc038414a4b780581957Elliott Hughes if (rc == -1) { 2297721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes throwErrnoException(env, "statvfs"); 229859fa7163774d6930a174bc038414a4b780581957Elliott Hughes return NULL; 229959fa7163774d6930a174bc038414a4b780581957Elliott Hughes } 2300721ceca2a52a3c27aa751476c8562e1e68088e15Elliott Hughes return makeStructStatVfs(env, sb); 230159fa7163774d6930a174bc038414a4b780581957Elliott Hughes} 230259fa7163774d6930a174bc038414a4b780581957Elliott Hughes 23030965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_strerror(JNIEnv* env, jobject, jint errnum) { 230452724d3ebd4ccaaa4b9f5576e329d4272cde8ea9Elliott Hughes char buffer[BUFSIZ]; 2305ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes const char* message = jniStrError(errnum, buffer, sizeof(buffer)); 2306ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes return env->NewStringUTF(message); 2307ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes} 2308ddfdbb9d172fe9b72e08e8d7deab0aa3b8acf044Elliott Hughes 23090965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jstring Linux_strsignal(JNIEnv* env, jobject, jint signal) { 2310763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes return env->NewStringUTF(strsignal(signal)); 2311763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes} 2312763f8ed6195707d0c30bfae1ca8a3bb886b746ccElliott Hughes 23130965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_symlink(JNIEnv* env, jobject, jstring javaOldPath, jstring javaNewPath) { 2314a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars oldPath(env, javaOldPath); 2315a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (oldPath.c_str() == NULL) { 2316a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 2317a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 2318a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes ScopedUtfChars newPath(env, javaNewPath); 2319a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes if (newPath.c_str() == NULL) { 2320a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes return; 2321a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes } 2322a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes throwIfMinusOne(env, "symlink", TEMP_FAILURE_RETRY(symlink(oldPath.c_str(), newPath.c_str()))); 2323a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes} 2324a20cc6fca30d18e05db67ceeb0403b7b58ffd364Elliott Hughes 23250965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jlong Linux_sysconf(JNIEnv* env, jobject, jint name) { 23266fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes // Since -1 is a valid result from sysconf(3), detecting failure is a little more awkward. 23276fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes errno = 0; 23286fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes long result = sysconf(name); 23296fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes if (result == -1L && errno == EINVAL) { 23307e25eff38a191d9c19e45093f4fde5102fb09d78Elliott Hughes throwErrnoException(env, "sysconf"); 23316fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes } 23326fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes return result; 23336fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes} 23346fc1a0e1e68dc2e0d12341548e58fa7f1c5dafc4Elliott Hughes 23350965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_tcdrain(JNIEnv* env, jobject, jobject javaFd) { 2336bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig int fd = jniGetFDFromFileDescriptor(env, javaFd); 2337bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig throwIfMinusOne(env, "tcdrain", TEMP_FAILURE_RETRY(tcdrain(fd))); 2338bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig} 2339bb5816aa1626eb2f6263bd21479600b114c8a1bdJohan Redestig 23400965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_tcsendbreak(JNIEnv* env, jobject, jobject javaFd, jint duration) { 2341039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes int fd = jniGetFDFromFileDescriptor(env, javaFd); 2342039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes throwIfMinusOne(env, "tcsendbreak", TEMP_FAILURE_RETRY(tcsendbreak(fd, duration))); 2343039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes} 2344039f7599559fd7e48c354b99dcb94ff391f53349Elliott Hughes 23450965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_umaskImpl(JNIEnv*, jobject, jint mask) { 234644f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes return umask(mask); 234744f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes} 234844f7875f2985d7944c5afecc8394ad9f2219c806Elliott Hughes 23490965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jobject Linux_uname(JNIEnv* env, jobject) { 23507341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes struct utsname buf; 23519b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes if (TEMP_FAILURE_RETRY(uname(&buf)) == -1) { 23529b510df35b57946d843ffc34cf23fdcfc84c5220Elliott Hughes return NULL; // Can't happen. 23537341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes } 23547341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes return makeStructUtsname(env, buf); 23557341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes} 23567341b9ed7157a1e37a3e69a0974676da358b735aElliott Hughes 23570965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_unlink(JNIEnv* env, jobject, jstring javaPathname) { 23585e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller ScopedUtfChars pathname(env, javaPathname); 23595e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller if (pathname.c_str() == NULL) { 23605e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller return; 23615e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller } 23625e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller throwIfMinusOne(env, "unlink", unlink(pathname.c_str())); 23635e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller} 23645e8f82f2592498e75ac4685ccd0d31d601d37bdcNeil Fuller 23650965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic void Linux_unsetenv(JNIEnv* env, jobject, jstring javaName) { 2366895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes ScopedUtfChars name(env, javaName); 2367895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes if (name.c_str() == NULL) { 2368895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes return; 2369895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes } 2370895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes throwIfMinusOne(env, "unsetenv", unsetenv(name.c_str())); 2371895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes} 2372895a613aa2aec6aa6d03b29755cf2fea584909adElliott Hughes 23730965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_waitpid(JNIEnv* env, jobject, jint pid, jobject javaStatus, jint options) { 23749e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int status; 23759e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes int rc = throwIfMinusOne(env, "waitpid", TEMP_FAILURE_RETRY(waitpid(pid, &status, options))); 23769e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes if (rc != -1) { 23779e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes static jfieldID valueFid = env->GetFieldID(JniConstants::mutableIntClass, "value", "I"); 23789e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes env->SetIntField(javaStatus, valueFid, status); 23799e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes } 23809e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes return rc; 23819e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes} 23829e67ca71d3d4a489a157abadc5ba519ced7a0b50Elliott Hughes 23830965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_writeBytes(JNIEnv* env, jobject, jobject javaFd, jbyteArray javaBytes, jint byteOffset, jint byteCount) { 23840568a63ba1086a78ffb4cff68dd2eac4f9908e13Elliott Hughes ScopedBytesRO bytes(env, javaBytes); 238578c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes if (bytes.get() == NULL) { 238678c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes return -1; 238778c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes } 2388f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, write, javaFd, bytes.get() + byteOffset, byteCount); 238978c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes} 239078c7cc547101002b9f9043cf3845970719d1bda8Elliott Hughes 23910965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampestatic jint Linux_writev(JNIEnv* env, jobject, jobject javaFd, jobjectArray buffers, jintArray offsets, jintArray byteCounts) { 23928dc754726bb5303c25e2c48decdf76d9323ee231Elliott Hughes IoVec<ScopedBytesRO> ioVec(env, env->GetArrayLength(buffers)); 2393bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes if (!ioVec.init(buffers, offsets, byteCounts)) { 2394bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes return -1; 2395bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes } 2396f0d40d662d9dfdb04215c718961765837d2cf00cNeil Fuller return IO_FAILURE_RETRY(env, ssize_t, writev, javaFd, ioVec.get(), ioVec.size()); 2397bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes} 2398bbac92e691de7d570928ddfba639067978e55b06Elliott Hughes 23998f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline#define NATIVE_METHOD_OVERLOAD(className, functionName, signature, variant) \ 24008f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline { #functionName, signature, reinterpret_cast<void*>(className ## _ ## functionName ## variant) } 24018f5b46d72e5c1b1b1dd4357580c4fb5a60e3f4deErik Kline 2402ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughesstatic JNINativeMethod gMethods[] = { 24030965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, accept, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)Ljava/io/FileDescriptor;"), 24040965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, access, "(Ljava/lang/String;I)Z"), 24050965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, android_getaddrinfo, "(Ljava/lang/String;Landroid/system/StructAddrinfo;I)[Ljava/net/InetAddress;"), 24060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, bind, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 24070965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD_OVERLOAD(Linux, bind, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress), 24085744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe NATIVE_METHOD(Linux, capget, 24095744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe "(Landroid/system/StructCapUserHeader;)[Landroid/system/StructCapUserData;"), 24105744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe NATIVE_METHOD(Linux, capset, 24115744e4a762ca12243b47dd8aed24d87d963b4d3bAndreas Gampe "(Landroid/system/StructCapUserHeader;[Landroid/system/StructCapUserData;)V"), 24120965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, chmod, "(Ljava/lang/String;I)V"), 24130965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, chown, "(Ljava/lang/String;II)V"), 24140965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, close, "(Ljava/io/FileDescriptor;)V"), 24150965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, connect, "(Ljava/io/FileDescriptor;Ljava/net/InetAddress;I)V"), 24160965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD_OVERLOAD(Linux, connect, "(Ljava/io/FileDescriptor;Ljava/net/SocketAddress;)V", SocketAddress), 24170965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, dup, "(Ljava/io/FileDescriptor;)Ljava/io/FileDescriptor;"), 24180965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, dup2, "(Ljava/io/FileDescriptor;I)Ljava/io/FileDescriptor;"), 24190965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, environ, "()[Ljava/lang/String;"), 24200965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, execv, "(Ljava/lang/String;[Ljava/lang/String;)V"), 24210965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, execve, "(Ljava/lang/String;[Ljava/lang/String;[Ljava/lang/String;)V"), 24220965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fchmod, "(Ljava/io/FileDescriptor;I)V"), 24230965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fchown, "(Ljava/io/FileDescriptor;II)V"), 24240965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fcntlFlock, "(Ljava/io/FileDescriptor;ILandroid/system/StructFlock;)I"), 24250965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fcntlInt, "(Ljava/io/FileDescriptor;II)I"), 24260965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fcntlVoid, "(Ljava/io/FileDescriptor;I)I"), 24270965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fdatasync, "(Ljava/io/FileDescriptor;)V"), 24280965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fstat, "(Ljava/io/FileDescriptor;)Landroid/system/StructStat;"), 24290965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fstatvfs, "(Ljava/io/FileDescriptor;)Landroid/system/StructStatVfs;"), 24300965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, fsync, "(Ljava/io/FileDescriptor;)V"), 24310965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, ftruncate, "(Ljava/io/FileDescriptor;J)V"), 24320965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, gai_strerror, "(I)Ljava/lang/String;"), 24330965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getegid, "()I"), 24340965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, geteuid, "()I"), 24350965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getgid, "()I"), 24360965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getenv, "(Ljava/lang/String;)Ljava/lang/String;"), 24370965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getnameinfo, "(Ljava/net/InetAddress;I)Ljava/lang/String;"), 24380965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpeername, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 24390965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpgid, "(I)I"), 24400965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpid, "()I"), 24410965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getppid, "()I"), 24420965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpwnam, "(Ljava/lang/String;)Landroid/system/StructPasswd;"), 24430965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getpwuid, "(I)Landroid/system/StructPasswd;"), 2444e873cd1285c04da110758df066b4bd40ad6eb93dNarayan Kamath NATIVE_METHOD(Linux, getrlimit, "(I)Landroid/system/StructRlimit;"), 24450965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockname, "(Ljava/io/FileDescriptor;)Ljava/net/SocketAddress;"), 24460965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptByte, "(Ljava/io/FileDescriptor;II)I"), 24470965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptInAddr, "(Ljava/io/FileDescriptor;II)Ljava/net/InetAddress;"), 24480965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptInt, "(Ljava/io/FileDescriptor;II)I"), 24490965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptLinger, "(Ljava/io/FileDescriptor;II)Landroid/system/StructLinger;"), 24500965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptTimeval, "(Ljava/io/FileDescriptor;II)Landroid/system/StructTimeval;"), 24510965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getsockoptUcred, "(Ljava/io/FileDescriptor;II)Landroid/system/StructUcred;"), 24520965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, gettid, "()I"), 24530965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getuid, "()I"), 24540965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getxattr, "(Ljava/lang/String;Ljava/lang/String;)[B"), 24550965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, getifaddrs, "()[Landroid/system/StructIfaddrs;"), 24560965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, if_indextoname, "(I)Ljava/lang/String;"), 24570965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, if_nametoindex, "(Ljava/lang/String;)I"), 24580965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, inet_pton, "(ILjava/lang/String;)Ljava/net/InetAddress;"), 24590965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, ioctlFlags, "(Ljava/io/FileDescriptor;Ljava/lang/String;)I"), 24600965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, ioctlInetAddress, "(Ljava/io/FileDescriptor;ILjava/lang/String;)Ljava/net/InetAddress;"), 24610965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, ioctlInt, "(Ljava/io/FileDescriptor;ILandroid/util/MutableInt;)I"), 24620965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, ioctlMTU, "(Ljava/io/FileDescriptor;Ljava/lang/String;)I"), 24630965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, isatty, "(Ljava/io/FileDescriptor;)Z"), 24640965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, kill, "(II)V"), 24650965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, lchown, "(Ljava/lang/String;II)V"), 24660965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, link, "(Ljava/lang/String;Ljava/lang/String;)V"), 24670965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, listen, "(Ljava/io/FileDescriptor;I)V"), 24680965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, listxattr, "(Ljava/lang/String;)[Ljava/lang/String;"), 24690965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, lseek, "(Ljava/io/FileDescriptor;JI)J"), 24700965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, lstat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 24710965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mincore, "(JJ[B)V"), 24720965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mkdir, "(Ljava/lang/String;I)V"), 24730965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mkfifo, "(Ljava/lang/String;I)V"), 24740965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mlock, "(JJ)V"), 24750965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, mmap, "(JJIILjava/io/FileDescriptor;J)J"), 24760965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, msync, "(JJI)V"), 24770965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, munlock, "(JJ)V"), 24780965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, munmap, "(JJ)V"), 24790965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, open, "(Ljava/lang/String;II)Ljava/io/FileDescriptor;"), 24800965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, pipe2, "(I)[Ljava/io/FileDescriptor;"), 24810965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, poll, "([Landroid/system/StructPollfd;I)I"), 24820965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, posix_fallocate, "(Ljava/io/FileDescriptor;JJ)V"), 24830965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, prctl, "(IJJJJ)I"), 24840965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, preadBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 24850965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, pwriteBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIJ)I"), 24860965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, readBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 24870965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, readlink, "(Ljava/lang/String;)Ljava/lang/String;"), 24880965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, realpath, "(Ljava/lang/String;)Ljava/lang/String;"), 24890965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, readv, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 24900965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, recvfromBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetSocketAddress;)I"), 24910965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, remove, "(Ljava/lang/String;)V"), 24920965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, removexattr, "(Ljava/lang/String;Ljava/lang/String;)V"), 24930965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, rename, "(Ljava/lang/String;Ljava/lang/String;)V"), 24940965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, sendfile, "(Ljava/io/FileDescriptor;Ljava/io/FileDescriptor;Landroid/util/MutableLong;J)J"), 24950965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/InetAddress;I)I"), 24960965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD_OVERLOAD(Linux, sendtoBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;IIILjava/net/SocketAddress;)I", SocketAddress), 24970965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setegid, "(I)V"), 24980965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setenv, "(Ljava/lang/String;Ljava/lang/String;Z)V"), 24990965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, seteuid, "(I)V"), 25000965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setgid, "(I)V"), 25010965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setpgid, "(II)V"), 25020965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setregid, "(II)V"), 25030965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setreuid, "(II)V"), 25040965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsid, "()I"), 25050965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptByte, "(Ljava/io/FileDescriptor;III)V"), 25060965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptIfreq, "(Ljava/io/FileDescriptor;IILjava/lang/String;)V"), 25070965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptInt, "(Ljava/io/FileDescriptor;III)V"), 25080965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptIpMreqn, "(Ljava/io/FileDescriptor;III)V"), 25090965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptGroupReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupReq;)V"), 25100965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptGroupSourceReq, "(Ljava/io/FileDescriptor;IILandroid/system/StructGroupSourceReq;)V"), 25110965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptLinger, "(Ljava/io/FileDescriptor;IILandroid/system/StructLinger;)V"), 25120965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setsockoptTimeval, "(Ljava/io/FileDescriptor;IILandroid/system/StructTimeval;)V"), 25130965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setuid, "(I)V"), 25140965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, setxattr, "(Ljava/lang/String;Ljava/lang/String;[BI)V"), 25150965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, shutdown, "(Ljava/io/FileDescriptor;I)V"), 25160965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, socket, "(III)Ljava/io/FileDescriptor;"), 25170965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, socketpair, "(IIILjava/io/FileDescriptor;Ljava/io/FileDescriptor;)V"), 25180965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, stat, "(Ljava/lang/String;)Landroid/system/StructStat;"), 25190965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, statvfs, "(Ljava/lang/String;)Landroid/system/StructStatVfs;"), 25200965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, strerror, "(I)Ljava/lang/String;"), 25210965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, strsignal, "(I)Ljava/lang/String;"), 25220965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, symlink, "(Ljava/lang/String;Ljava/lang/String;)V"), 25230965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, sysconf, "(I)J"), 25240965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, tcdrain, "(Ljava/io/FileDescriptor;)V"), 25250965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, tcsendbreak, "(Ljava/io/FileDescriptor;I)V"), 25260965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, umaskImpl, "(I)I"), 25270965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, uname, "()Landroid/system/StructUtsname;"), 25280965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, unlink, "(Ljava/lang/String;)V"), 25290965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, unsetenv, "(Ljava/lang/String;)V"), 25300965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, waitpid, "(ILandroid/util/MutableInt;I)I"), 25310965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, writeBytes, "(Ljava/io/FileDescriptor;Ljava/lang/Object;II)I"), 25320965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe NATIVE_METHOD(Linux, writev, "(Ljava/io/FileDescriptor;[Ljava/lang/Object;[I[I)I"), 2533ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes}; 25340965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampevoid register_libcore_io_Linux(JNIEnv* env) { 25350965ac3ceff49f3c090c417c0e30ea51c6f294a7Andreas Gampe jniRegisterNativeMethods(env, "libcore/io/Linux", gMethods, NELEM(gMethods)); 2536ec617e2cb4a374f0fd8fbda4a633214cf23a59a9Elliott Hughes} 2537