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2020-07-23Internal change.gVisor bot
PiperOrigin-RevId: 322859907
2020-07-11Stub out SO_DETACH_FILTER.Bhasker Hariharan
Updates #2746 PiperOrigin-RevId: 320757963
2020-07-01Port fallocate to VFS2.Zach Koopmans
PiperOrigin-RevId: 319283715
2020-06-29Refactor udp_socket_testZach Koopmans
Bring udp_socket_test into complianc by: - Eliminating IsRunningOnGvisor() invocations. - Wrapping sockets in RAII FileDescriptor objects. - Creating a Bind() method so that the first bind happens on port 0. PiperOrigin-RevId: 318909396
2020-06-27Port GETOWN, SETOWN fcntls to vfs2.Dean Deng
Also make some fixes to vfs1's F_SETOWN. The fcntl test now entirely passes on vfs2. Fixes #2920. PiperOrigin-RevId: 318669529
2020-06-26IPv6 raw sockets. Needed for ip6tables.Kevin Krakauer
IPv6 raw sockets never include the IPv6 header. PiperOrigin-RevId: 318582989
2020-06-23Support inotify in vfs2 gofer fs.Dean Deng
Because there is no inode structure stored in the sandbox, inotify watches must be held on the dentry. This would be an issue in the presence of hard links, where multiple dentries would need to share the same set of watches, but in VFS2, we do not support the internal creation of hard links on gofer fs. As a result, we make the assumption that every dentry corresponds to a unique inode. Furthermore, dentries can be cached and then evicted, even if the underlying file has not be deleted. We must prevent this from occurring if there are any watches that would be lost. Note that if the dentry was deleted or invalidated (d.vfsd.IsDead()), we should still destroy it along with its watches. Additionally, when a dentry’s last watch is removed, we cache it if it also has zero references. This way, the dentry can eventually be evicted from memory if it is no longer needed. This is accomplished with a new dentry method, OnZeroWatches(), which is called by Inotify.RmWatch and Inotify.Release. Note that it must be called after all inotify locks are released to avoid violating lock order. Stress tests are added to make sure that inotify operations don't deadlock with gofer.OnZeroWatches. Updates #1479. PiperOrigin-RevId: 317958034
2020-06-17Implement POSIX locksFabricio Voznika
- Change FileDescriptionImpl Lock/UnlockPOSIX signature to take {start,length,whence}, so the correct offset can be calculated in the implementations. - Create PosixLocker interface to make it possible to share the same locking code from different implementations. Closes #1480 PiperOrigin-RevId: 316910286
2020-06-15Correctly set the test VFS environment variable.Rahat Mahmood
Also fix test bugs uncovered now that they aren't silently skipped on VFS2. Updates #1487. PiperOrigin-RevId: 316415807
2020-06-11Merge pull request #2705 from lubinszARM:pr_sigfp_nestedgVisor bot
PiperOrigin-RevId: 315979564
2020-06-09Implement flock(2) in VFS2Fabricio Voznika
LockFD is the generic implementation that can be embedded in FileDescriptionImpl implementations. Unique lock ID is maintained in vfs.FileDescription and is created on demand. Updates #1480 PiperOrigin-RevId: 315604825
2020-06-05Fix error code returned due to Port exhaustion.Bhasker Hariharan
For TCP sockets gVisor incorrectly returns EAGAIN when no ephemeral ports are available to bind during a connect. Linux returns EADDRNOTAVAIL. This change fixes gVisor to return the correct code and adds a test for the same. This change also fixes a minor bug for ping sockets where connect() would fail with EINVAL unless the socket was bound first. Also added tests for testing UDP Port exhaustion and Ping socket port exhaustion. PiperOrigin-RevId: 314988525
2020-05-29Port inotify to vfs2, with support in tmpfs.Dean Deng
Support in other filesystem impls is still needed. Unlike in Linux and vfs1, we need to plumb inotify down to each filesystem implementation in order to keep track of links/inode structures properly. IN_EXCL_UNLINK still needs to be implemented, as well as a few inotify hooks that are not present in either vfs1 or vfs2. Those will be addressed in subsequent changes. Updates #1479. PiperOrigin-RevId: 313781995
2020-05-15passed the syscall test case 'fpsig_nested' on Arm64 platformBin Lu
Some functions were added for Arm64 platform: a, get_fp/set_fp b, inline_tgkill Test step: bazel test //test/syscalls:fpsig_nested_test_runsc_ptrace Signed-off-by: Bin Lu <bin.lu@arm.com>
2020-05-14Merge pull request #2663 from lubinszARM:pr_sigfp_forkgVisor bot
PiperOrigin-RevId: 311573552
2020-05-13Resolve remaining TODOs for tmpfs.Nicolas Lacasse
Closes #1197 PiperOrigin-RevId: 311438223
2020-05-11Internal change.gVisor bot
PiperOrigin-RevId: 310941717
2020-05-11passed the syscall test case 'fpsig_fork' on Arm64 platformBin Lu
Some functions were added for Arm64 platform: a, get_fp/set_fp b, inline_tgkill Test step: bazel test //test/syscalls:fpsig_fork_test_runsc_ptrace Signed-off-by: Bin Lu <bin.lu@arm.com>
2020-04-28Fix Unix socket permissions.Dean Deng
Enforce write permission checks in BoundEndpointAt, which corresponds to the permission checks in Linux (net/unix/af_unix.c:unix_find_other). Also, create bound socket files with the correct permissions in VFS2. Fixes #2324. PiperOrigin-RevId: 308949084
2020-04-14Merge pull request #2375 from lubinszARM:pr_exec_binarygVisor bot
PiperOrigin-RevId: 306432289
2020-04-09Dedup netlink utility functions in tests.Ting-Yu Wang
PiperOrigin-RevId: 305749697
2020-04-08splice: cap splice calls to MAX_RW_COUNTAndrei Vagin
The Linux does the same. Reported-by: syzbot+e81716e8956e92e9d56b@syzkaller.appspotmail.com PiperOrigin-RevId: 305625439
2020-04-08Enable exec_binary syscall test on Arm64Bin Lu
Signed-off-by: Bin Lu <bin.lu@arm.com>
2020-03-18Enable syscall sysret_test on arm64.Haibo Xu
Fixes #2058 Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I05750d238a6425d3a47fae15720901f4dd924a32
2020-03-12Remove flaky network namespace test that uses clone().Ting-Yu Wang
PiperOrigin-RevId: 300626011
2020-03-05Stub oom_score_adj and oom_score.Ian Lewis
Adds an oom_score_adj and oom_score proc file stub. oom_score_adj accepts writes of values -1000 to 1000 and persists the value with the task. New tasks inherit the parent's oom_score_adj. oom_score is a read-only stub that always returns the value '0'. Issue #202 PiperOrigin-RevId: 299245355
2020-03-05Merge pull request #2036 from xiaobo55x:syscall_testgVisor bot
PiperOrigin-RevId: 299151227
2020-03-03Move temp_umask to test/util.Adin Scannell
PiperOrigin-RevId: 298667595
2020-03-02Fix syscall test build error on arm64.Haibo Xu
The error was introduced in the merge of PR #1471. Some codes are missing when adding bazel select_arch command to the test/syscall/linux/BUILD file. Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I8cae3f4ae78c2e14671f3ac6e7361dc2806d9305
2020-02-28Hide /dev/net/tun when using hostinet.Ting-Yu Wang
/dev/net/tun does not currently work with hostinet. This has caused some program starts failing because it thinks the feature exists. PiperOrigin-RevId: 297876196
2020-02-21Implement tap/tun device in vfs.Ting-Yu Wang
PiperOrigin-RevId: 296526279
2020-02-20Initial network namespace support.gVisor bot
TCP/IP will work with netstack networking. hostinet doesn't work, and sockets will have the same behavior as it is now. Before the userspace is able to create device, the default loopback device can be used to test. /proc/net and /sys/net will still be connected to the root network stack; this is the same behavior now. Issue #1833 PiperOrigin-RevId: 296309389
2020-02-19Include more test files in exports_filesgVisor bot
So that they can be included by Fuchsia's syscall tests PiperOrigin-RevId: 296030383
2020-02-12Include more test files in exports_filesgVisor bot
So that they can be included by Fuchsia's syscall tests PiperOrigin-RevId: 294654890
2020-02-07Support listxattr and removexattr syscalls.Dean Deng
Note that these are only implemented for tmpfs, and other impls will still return EOPNOTSUPP. PiperOrigin-RevId: 293899385
2020-02-07Refactor syscall testsJay Zhuang
- Move shared helpers V4Multicast and V4Broadcast to socket_test_util - Add unnamed namespace so socket_ipv4_tcp_unbound_external_networking_test.cc and socket_ipv4_udp_unbound_external_networking_test.cc can be compiled together - Add test files to "exports_files" so they can be included by Fuchsia's syscall test setup PiperOrigin-RevId: 293880429
2020-02-04Support RTM_NEWADDR and RTM_GETLINK in (rt)netlink.Ting-Yu Wang
PiperOrigin-RevId: 293271055
2020-02-04Add socket connection stress test.Ian Gudger
Tests 65k connection attempts on common types of sockets to check for port leaks. Also fixes a bug where dual-stack sockets wouldn't properly re-queue segments received while closing. PiperOrigin-RevId: 293241166
2020-02-04Include socket_ip_udp_loopback.cc in exportes_filesJay Zhuang
So it can be included in fuchsia's syscall tests PiperOrigin-RevId: 293208306
2020-01-30Simplify testing link rules.Adin Scannell
PiperOrigin-RevId: 292458933
2020-01-30Merge pull request #1471 from xiaobo55x:syscall_testgVisor bot
PiperOrigin-RevId: 292445329
2020-01-30Merge pull request #1630 from xiaobo55x:kOLargeFilegVisor bot
PiperOrigin-RevId: 292419699
2020-01-30Fix for panic in endpoint.Close().Bhasker Hariharan
When sending a RST on shutdown we need to double check the state after acquiring the work mutex as the endpoint could have transitioned out of a connected state from the time we checked it and we acquired the workMutex. I added two tests but sadly neither reproduce the panic. I am going to leave the tests in as they are good to have anyway. PiperOrigin-RevId: 292393800
2020-01-27Create platform_util for tests.Adin Scannell
PiperOrigin-RevId: 291869423
2020-01-27Standardize on tools directory.Adin Scannell
PiperOrigin-RevId: 291745021
2020-01-17Enable build of test/syscall tests on arm64.Haibo Xu
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I277d6c708bbf5c3edd7c3568941cfd01dc122e17
2020-01-13Allow dual stack sockets to operate on AF_INETTamir Duberstein
Fixes #1490 Fixes #1495 PiperOrigin-RevId: 289523250
2020-01-08Return correct length with MSG_TRUNC for unix sockets.Ian Lewis
This change calls a new Truncate method on the EndpointReader in RecvMsg for both netlink and unix sockets. This allows readers such as sockets to peek at the length of data without actually reading it to a buffer. Fixes #993 #1240 PiperOrigin-RevId: 288800167
2019-12-18Switch to netinet/tcp.h and poll.h to for better platform portability.Jay Zhuang
PiperOrigin-RevId: 286249699
2019-12-18Put GetSocketPairs() in unnamed namespaceJay Zhuang
This avoids conflicting definitions of GetSocketPairs() in outer namespace when multiple such cc files are complied for one binary. PiperOrigin-RevId: 286243045
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