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2020-08-13Ensure TCP TIME-WAIT is not terminated prematurely.Bhasker Hariharan
Netstack's TIME-WAIT state for a TCP socket could be terminated prematurely if the socket entered TIME-WAIT using shutdown(..., SHUT_RDWR) and then was closed using close(). This fixes that bug and updates the tests to verify that Netstack correctly honors TIME-WAIT under such conditions. Fixes #3106 PiperOrigin-RevId: 326456443
2020-08-12Add reference leak checking to vfs2 tmpfs.inode.Dean Deng
Updates #1486. PiperOrigin-RevId: 326354750
2020-08-12[vfs2][gofer] Return appropriate errors when opening and creating files.Ayush Ranjan
Fixes php test ext/standard/tests/file/touch_variation5.phpt on vfs2. Updates #3516 Also spotted a bug with O_EXCL, where we did not return EEXIST when we tried to open the root of the filesystem with O_EXCL | O_CREAT. Added some more tests for open() corner cases. PiperOrigin-RevId: 326346863
2020-08-12ip6tables: ABI structs and constantsKevin Krakauer
Part of #3549. PiperOrigin-RevId: 326329028
2020-08-12Merge pull request #3605 from lubinszARM:pr_helloworld_thunderx2gVisor bot
PiperOrigin-RevId: 326326710
2020-08-12Merge pull request #3250 from craig08:fuse-getattrgVisor bot
PiperOrigin-RevId: 326313858
2020-08-12Limit the scope when deleting test log directory on successFabricio Voznika
The code was deleting logs for all tests when a single test passed. Change it to delete only the logs relevant to the test at hand. Also fixed the benchmark lookup code, which was always generating a single empty benchmark entry if there were not benchmarks. PiperOrigin-RevId: 326311477
2020-08-12Redirect TODOFabricio Voznika
Fixes #2923 PiperOrigin-RevId: 326296589
2020-08-12Release fd references on aio callback cancellation.Dean Deng
Discovered by reference leak checker on tmpfs.inode. PiperOrigin-RevId: 326294755
2020-08-12Fix race in vfs.FileDescription.statusFlagFabricio Voznika
PiperOrigin-RevId: 326270643
2020-08-12Running hello-world on Thunderx2 with kvmBin Lu
Signed-off-by: Bin Lu <bin.lu@arm.com>
2020-08-11Fix-up issue comment.Adin Scannell
PiperOrigin-RevId: 326129258
2020-08-11Eliminate one allocation per send/recv for non-flipcall transport.Fazlul Shahriar
Ported from https://github.com/hugelgupf/p9/pull/44. name old time/op new time/op delta SendRecvLegacy-6 61.5µs ± 6% 60.1µs ±11% ~ (p=0.063 n=9+9) SendRecv-6 40.7µs ± 2% 39.8µs ± 5% -2.27% (p=0.035 n=10+10) name old alloc/op new alloc/op delta SendRecvLegacy-6 769B ± 0% 705B ± 0% -8.37% (p=0.000 n=8+10) SendRecv-6 320B ± 0% 256B ± 0% -20.00% (p=0.000 n=10+10) name old allocs/op new allocs/op delta SendRecvLegacy-6 25.0 ± 0% 23.0 ± 0% -8.00% (p=0.000 n=10+10) SendRecv-6 14.0 ± 0% 12.0 ± 0% -14.29% (p=0.000 n=10+10) PiperOrigin-RevId: 326127979
2020-08-11Mark integration tests as passing in VFS2 except CheckpointRestore.Zach Koopmans
Mark all tests passing for VFS2 in: image_test integration_test There's no way to do negative look ahead/behind in golang test regex, so check if the tests uses VFS2 and skip CheckPointRestore if it does. PiperOrigin-RevId: 326050915
2020-08-10Set the NetworkProtocolNumber of all PacketBuffers.Kevin Krakauer
NetworkEndpoints set the number on outgoing packets in Write() and NetworkProtocols set them on incoming packets in Parse(). Needed for #3549. PiperOrigin-RevId: 325938745
2020-08-10Implement FUSE_GETATTRCraig Chi
FUSE_GETATTR is called when a stat(2), fstat(2), or lstat(2) is issued from VFS2 layer to a FUSE filesystem. Fixes #3175
2020-08-10Populate IPPacketInfo with destination addressGhanan Gowripalan
IPPacketInfo.DestinationAddr should hold the destination of the IP packet, not the source. This change fixes that bug. PiperOrigin-RevId: 325910766
2020-08-10Enable VFS2 by default for all syscall tests.Ayush Ranjan
Fixes #2923 PiperOrigin-RevId: 325904734
2020-08-10Add benchmarks to continuous build.Zach Koopmans
PiperOrigin-RevId: 325892974
2020-08-10ip6tables: move target-specific code to targets.goKevin Krakauer
This is purely moving code, no changes. netfilter.go is cluttered and targets.go is a good place for this. #3549 PiperOrigin-RevId: 325879965
2020-08-10Mark DirCreation/tmp tests as passing.Zach Koopmans
PiperOrigin-RevId: 325861904
2020-08-10Run GC before sandbox exit when leak checking is enabled.Dean Deng
Running garbage collection enqueues all finalizers, which are used by the refs/refs_vfs2 packages to detect reference leaks. Note that even with GC, there is no guarantee that all finalizers will be run before the program exits. This is a best effort attempt to activate leak checks as much as possible. Updates #3545. PiperOrigin-RevId: 325834438
2020-08-08Use unicast source for ICMP echo repliesGhanan Gowripalan
Packets MUST NOT use a non-unicast source address for ICMP Echo Replies. Test: integration_test.TestPingMulticastBroadcast PiperOrigin-RevId: 325634380
2020-08-07Add context.FullStateChanged()Andrei Vagin
It indicates that the Sentry has changed the state of the thread and next calls of PullFullState() has to do nothing. PiperOrigin-RevId: 325567415
2020-08-07[vfs2] Fix tmpfs mounting.Ayush Ranjan
Earlier we were using NLink to decide if /tmp is empty or not. However, NLink at best tells us about the number of subdirectories (via the ".." entries). NLink = n + 2 for n subdirectories. But it does not tell us if the directory is empty. There still might be non-directory files. We could also not rely on NLink because host overlayfs always returned 1. VFS1 uses Readdir to decide if the directory is empty. Used a similar approach. We now use IterDirents to decide if the "/tmp" directory is empty. Fixes #3369 PiperOrigin-RevId: 325554234
2020-08-07Merge pull request #3520 from boyuan-he:marshal-implgVisor bot
PiperOrigin-RevId: 325546935
2020-08-07Don't hold gofer.filesystem.renameMu during dentry destruction.Jamie Liu
PiperOrigin-RevId: 325546629
2020-08-07Merge pull request #3069 from lubinszARM:pr_serr_injection2gVisor bot
PiperOrigin-RevId: 325546308
2020-08-07Remove doc rules for non-existent filesAndrei Vagin
These files have been deleted by cl/324775563. PiperOrigin-RevId: 325543067
2020-08-07Mark dropped pages unevictable in fsimpl/gofer.dentry.destroyLocked.Jamie Liu
PiperOrigin-RevId: 325531657
2020-08-07Remove old benchmark tools.Zach Koopmans
Remove the old benchmark-tools directory, including imports in the WORKSPACE file and associated bazel rules. The new Golang benchmark-tools can be found at //test/benchmarks and it is functionally equivalent, excepting syscall_test which can be found in //test/perf/linux. PiperOrigin-RevId: 325529075
2020-08-07Fix panic during Address Resolution of neighbor entry created by NSSam Balana
When a Neighbor Solicitation is received, a neighbor entry is created with the remote host's link layer address, but without a link layer address resolver. If the host decides to send a packet addressed to the IP address of that neighbor entry, Address Resolution starts with a nil pointer to the link layer address resolver. This causes the netstack to panic and crash. This change ensures that when a packet is sent in that situation, the link layer address resolver will be set before Address Resolution begins. Tests: pkg/tcpip/stack:stack_test + TestEntryUnknownToStaleToProbeToReachable - TestNeighborCacheEntryNoLinkAddress Updates #1889 Updates #1894 Updates #1895 Updates #1947 Updates #1948 Updates #1949 Updates #1950 PiperOrigin-RevId: 325516471
2020-08-07Port Ruby benchmark.Zach Koopmans
PiperOrigin-RevId: 325500772
2020-08-07Port Startup and Density Benchmarks.Zach Koopmans
PiperOrigin-RevId: 325497346
2020-08-07tcp: change the limit of TCP_LINGER2Andrei Vagin
It was changed in the Linux kernel: commit f0628c524fd188c3f9418e12478dfdfadacba815 Date: Fri Apr 24 16:06:16 2020 +0800 net: Replace the limit of TCP_LINGER2 with TCP_FIN_TIMEOUT_MAX PiperOrigin-RevId: 325493859
2020-08-07Support separate read/write handles in fsimpl/gofer.dentry.Jamie Liu
PiperOrigin-RevId: 325490674
2020-08-07[runtime tests] Exclude flaky/failing testsAyush Ranjan
PiperOrigin-RevId: 325481011
2020-08-07Tolerate EINTR from fallocate() in inotify test.Jamie Liu
PiperOrigin-RevId: 325472312
2020-08-07Try to update atime and mtime on VFS2 gofer files on dentry eviction.Jamie Liu
PiperOrigin-RevId: 325388385
2020-08-06Add LinkAt support to goferFabricio Voznika
Updates #1198 PiperOrigin-RevId: 325350818
2020-08-07add stub go marshallable implementationBoyuan He
2020-08-06Add bzl_library rules for .bzl files without one.Adin Scannell
PiperOrigin-RevId: 325280924
2020-08-06Add reference counting utility to VFS2.Dean Deng
The utility has several differences from the VFS1 equivalent: - There are no weak references, which have a significant overhead - In order to print useful debug messages with the type of the reference- counted object, we use a generic Refs object with the owner type as a template parameter. In vfs1, this was accomplished by storing a type name and caller stack directly in the ref count (as in vfs1), which increases the struct size by 6x. (Note that the caller stack was needed because fs types like Dirent were shared by all fs implementations; in vfs2, each impl has its own data structures, so this is no longer necessary.) Updates #1486. PiperOrigin-RevId: 325271469
2020-08-06Merge pull request #3511 from amscanne:packetimpact-testsgVisor bot
PiperOrigin-RevId: 325269275
2020-08-06[runtime tests] Exclude failing python and java testsAyush Ranjan
test_httplib was un-excluded in cl/325137657. Exclude it again. test_httplib fails consistently when running in a kokoro job. Could not repro with Docker. There are some java tests that pass locally on Docker but fail when running within a kokoro job. Also make shard count a multiple of 8 to minimize idle cores and minimize test time. PiperOrigin-RevId: 325267071
2020-08-06Only register /dev/net/tun if supported.Dean Deng
PiperOrigin-RevId: 325266487
2020-08-06Join IPv4 all-systems group on NIC enableGhanan Gowripalan
Test: - stack_test.TestJoinLeaveMulticastOnNICEnableDisable - integration_test.TestIncomingMulticastAndBroadcast PiperOrigin-RevId: 325185259
2020-08-05Add loss recovery option for TCP.Nayana Bidari
/proc/sys/net/ipv4/tcp_recovery is used to enable RACK loss recovery in TCP. PiperOrigin-RevId: 325157807
2020-08-05Correctly decrement link counts in tmpfs rename operations.Dean Deng
When a directory is replaced by a rename operation, its link count should reach zero. We were missing the link from `dir/.` PiperOrigin-RevId: 325141730
2020-08-05[runtime tests] Update python tests.Ayush Ranjan
- un-exclude passing tests to increase testing surface. - create/update bugs for tests that fail on runsc but pass on runc. PiperOrigin-RevId: 325137657
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