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2021-04-23hostinet: parse the timeval structure from a SO_TIMESTAMP control messageAndrei Vagin
PiperOrigin-RevId: 370181621
2021-04-22Remove side effect from mount testsFabricio Voznika
Dropping CAP_SYS_ADMIN and not restoring it causes other tests to be skipped. PiperOrigin-RevId: 370002644
2021-04-22Add mlock syscall testFabricio Voznika
PiperOrigin-RevId: 369993733
2021-04-22Fix AF_UNIX listen() w/ zero backlog.Bhasker Hariharan
In https://github.com/google/gvisor/commit/f075522849fa a check to increase zero to a minimum backlog length was removed from sys_socket.go to bring it in parity with linux and then in tcp/endpoint.go we bump backlog by 1. But this broke calling listen on a AF_UNIX socket w/ a zero backlog as in linux it does allow 1 connection even with a zero backlog. This was caught by a php runtime test socket_abstract_path.phpt. PiperOrigin-RevId: 369974744
2021-04-22Also report mount options through /proc/<pid>/mounts.Rahat Mahmood
PiperOrigin-RevId: 369967629
2021-04-22Add verity tests for modified file/Merkle fileChong Cai
PiperOrigin-RevId: 369909691
2021-04-21Stub the custom "job" controller required by some workloads.Rahat Mahmood
PiperOrigin-RevId: 369724358
2021-04-20Clean test tags.Adin Scannell
PiperOrigin-RevId: 369505182
2021-04-20Speed up O_APPEND with remote revalidatingFabricio Voznika
Remote revalidating requires to update file size on every write on a file opened with O_APPEND. If host FD exists, it can be used to update the size and skip round trip to the gofer. With this change, O_APPEND writes with remote revalidating is almost as fast as exclusive mode: BM_Append VFS1 60.7us VFS2 56.8us VFS2 exclusive 14.2us This change 15.8us Updates #1792 PiperOrigin-RevId: 369486801
2021-04-20Move SO_RCVBUF to socketops.Nayana Bidari
Fixes #2926, #674 PiperOrigin-RevId: 369457123
2021-04-17Avoid ignoring incoming packet by demuxer on endpoint lookup failureMithun Iyer
This fixes a race that occurs while the endpoint is being unregistered and the transport demuxer attempts to match the incoming packet to any endpoint. The race specifically occurs when the unregistration (and deletion of the endpoint) occurs, after a successful endpointsByNIC lookup and before the endpoints map is further looked up with ingress NICID of the packet. The fix is to notify the caller of lookup-with-NICID failure, so that the logic falls through to handling unknown destination packets. For TCP this can mean replying back with RST. The syscall test in this CL catches this race as the ACK completing the handshake could get silently dropped on a listener close, causing no RST sent to the peer and timing out the poll waiting for POLLHUP. Fixes #5850 PiperOrigin-RevId: 369023779
2021-04-16Allow runsc to generate coverage reports.Dean Deng
Add a coverage-report flag that will cause the sandbox to generate a coverage report (with suffix .cov) in the debug log directory upon exiting. For the report to be generated, runsc must have been built with the following Bazel flags: `--collect_code_coverage --instrumentation_filter=...`. With coverage reports, we should be able to aggregate results across all tests to surface code coverage statistics for the project as a whole. The report is simply a text file with each line representing a covered block as `file:start_line.start_col,end_line.end_col`. Note that this is similar to the format of coverage reports generated with `go test -coverprofile`, although we omit the count and number of statements, which are not useful for us. Some simple ways of getting coverage reports: bazel test <some_test> --collect_code_coverage \ --instrumentation_filter=//pkg/... bazel build //runsc --collect_code_coverage \ --instrumentation_filter=//pkg/... runsc -coverage-report=dir/ <other_flags> do ... PiperOrigin-RevId: 368952911
2021-04-16Include logs for packetimpact tests that are expected to failZeling Feng
PiperOrigin-RevId: 368938936
2021-04-16Use size_t instead of C integer types.Dean Deng
PiperOrigin-RevId: 368919557
2021-04-15Add verity ioctl test for mount with root hashChong Cai
PiperOrigin-RevId: 368779532
2021-04-15Disable failing socket_ipv4_udp_unbound_loopback_test_linux tests.Dean Deng
PiperOrigin-RevId: 368749894
2021-04-14Make the generated test binary name match the target nameTing-Yu Wang
PiperOrigin-RevId: 368495641
2021-04-13Remove _NoRandomSave tests.Adin Scannell
We do not currently run random save tests. PiperOrigin-RevId: 368309921
2021-04-13Fix listener close, client connect raceMithun Iyer
Fix a race where the ACK completing the handshake can be dropped by a closing listener without RST to the peer. The listener close would reset the accepted queue and that causes the connecting endpoint in SYNRCVD state to drop the ACK thinking the queue if filled up. PiperOrigin-RevId: 368165509
2021-04-12Make AsSockAddr() to replace reinterpret_cast<sockaddr*>Ting-Yu Wang
It's a common pattern in test code to reinterpret_cast<sockaddr*> from sockaddr_* structs. Make AsSockAddr() for them so code looks better. Note: Why not a wrapper type for `sockaddr_storage` and etc? It's also a common need to have a local in-out variable of socklen_t. Creating a wrapper type may however lead to this wrong code: Wrapper addr; socklen_t addrlen = sizeof(addr); where sizeof(Wrapper) may not equal to sizeof(sockaddr_storage). PiperOrigin-RevId: 368126229
2021-04-09iptables: support postrouting hook and SNAT targetToshi Kikuchi
The current SNAT implementation has several limitations: - SNAT source port has to be specified. It is not optional. - SNAT source port range is not supported. - SNAT for UDP is a one-way translation. No response packets are handled (because conntrack doesn't support UDP currently). - SNAT and REDIRECT can't work on the same connection. Fixes #5489 PiperOrigin-RevId: 367750325
2021-04-09Merge pull request #5767 from avagin:mxcsrgVisor bot
PiperOrigin-RevId: 367730917
2021-04-09Move maxListenBacklog check to sentryMithun Iyer
Move maxListenBacklog check to the caller of endpoint Listen so that it is applicable to Unix domain sockets as well. This was changed in cl/366935921. Reported-by: syzbot+a35ae7cdfdde0c41cf7a@syzkaller.appspotmail.com PiperOrigin-RevId: 367728052
2021-04-07perf/getpid: add a case when syscalls are executed via mov $XXX, %eax; syscallAndrei Vagin
This is the most often pattern of calling system calls in real applications. PiperOrigin-RevId: 367320048
2021-04-05Fix listen backlog handling to be in parity with LinuxMithun Iyer
- Change the accept queue full condition for a listening endpoint to only honor completed (and delivered) connections. - Use syncookies if the number of incomplete connections is beyond listen backlog. This also cleans up the SynThreshold option code as that is no longer used with this change. - Added a new stack option to unconditionally generate syncookies. Similar to sysctl -w net.ipv4.tcp_syncookies=2 on Linux. - Enable keeping of incomplete connections beyond listen backlog. - Drop incoming SYNs only if the accept queue is filled up. - Drop incoming ACKs that complete handshakes when accept queue is full - Enable the stack to accept one more connection than programmed by listen backlog. - Handle backlog argument being zero, negative for listen, as Linux. - Add syscall and packetimpact tests to reflect the changes above. - Remove TCPConnectBacklog test which is polling for completed connections on the client side which is not reflective of whether the accept queue is filled up by the test. The modified syscall test in this CL addresses testing of connecting sockets. Fixes #3153 PiperOrigin-RevId: 366935921
2021-04-05Report task CPU usage through the cpuacct cgroup controller.Rahat Mahmood
PiperOrigin-RevId: 366923274
2021-04-05Add initial verity ioctl syscall testsChong Cai
PiperOrigin-RevId: 366907152
2021-04-05Enable Checkpoint/Restore test with VFS2Fabricio Voznika
Closes #3373 PiperOrigin-RevId: 366903991
2021-04-05Add fsstress on tmpfs to presubmitFabricio Voznika
Updates #5273 PiperOrigin-RevId: 366902314
2021-04-05Actually don't run unlink_benchmark with TSAN.Ayush Ranjan
This benchmark currently takes > 15 minutes to run in that case. PiperOrigin-RevId: 366891726
2021-04-05deflake semaphore testKevin Krakauer
There's no reason to actually increment the semaphore, it just introduces the chance of a race. PiperOrigin-RevId: 366851795
2021-04-05Allow user mount for verity fsChong Cai
Allow user mounting a verity fs on an existing mount by specifying mount flags root_hash and lower_path. PiperOrigin-RevId: 366843846
2021-04-05Fail tests when container returns non-zero statusFabricio Voznika
PiperOrigin-RevId: 366839955
2021-04-05Don't run unlink_benchmark with TSAN.Adin Scannell
This benchmark currently takes > 15 minutes to run in that case. PiperOrigin-RevId: 366817185
2021-04-03Remove eternal and enormous tests.Adin Scannell
PiperOrigin-RevId: 366573366
2021-04-02Implement cgroupfs.Rahat Mahmood
A skeleton implementation of cgroupfs. It supports trivial cpu and memory controllers with no support for hierarchies. PiperOrigin-RevId: 366561126
2021-04-01Remove invalid dependency.Adin Scannell
PiperOrigin-RevId: 366344222
2021-04-01Internal change.gVisor bot
PiperOrigin-RevId: 366292533
2021-03-30Fix panic when overriding /dev files with VFS2Fabricio Voznika
VFS1 skips over mounts that overrides files in /dev because the list of files is hardcoded. This is not needed for VFS2 and a recent change lifted this restriction. However, parts of the code were still skipping /dev mounts even in VFS2, causing the loader to panic when it ran short of FDs to connect to the gofer. PiperOrigin-RevId: 365858436
2021-03-29[syserror] Split usermem packageZach Koopmans
Split usermem package to help remove syserror dependency in go_marshal. New hostarch package contains code not dependent on syserror. PiperOrigin-RevId: 365651233
2021-03-25setgid: skip tests when we can't find usable GIDsKevin Krakauer
PiperOrigin-RevId: 365092320
2021-03-24Add POLLRDNORM/POLLWRNORM support.Bhasker Hariharan
On Linux these are meant to be equivalent to POLLIN/POLLOUT. Rather than hack these on in sys_poll etc it felt cleaner to just cleanup the call sites to notify for both events. This is what linux does as well. Fixes #5544 PiperOrigin-RevId: 364859977
2021-03-23setgid directory support in goferfsKevin Krakauer
Also adds support for clearing the setuid bit when appropriate (writing, truncating, changing size, changing UID, or changing GID). VFS2 only. PiperOrigin-RevId: 364661835
2021-03-22Fix logs for packetimpact tests cleanupZeling Feng
- Don't cleanup containers in Network.Cleanup, otherwise containers will be killed and removed several times. - Don't set AutoRemove for containers. This will prevent the confusing 'removal already in progress' messages. Fixes #3795 PiperOrigin-RevId: 364404414
2021-03-22Fix and merge tcp_{outside_the_window,tcp_unacc_seq_ack}_closingZeling Feng
The tests were not using the correct windowSize so the testing segments were actually within the window for seqNumOffset=0 tests. The issue is already fixed by #5674. PiperOrigin-RevId: 364252630
2021-03-18Translate syserror when validating partial IO errorsFabricio Voznika
syserror allows packages to register translators for errors. These translators should be called prior to checking if the error is valid, otherwise it may not account for possible errors that can be returned from different packages, e.g. safecopy.BusError => syserror.EFAULT. Second attempt, it passes tests now :-) PiperOrigin-RevId: 363714508
2021-03-18Address post submit comments for fs benchmarks.Zach Koopmans
Also, drop fio total reads/writes to 1GB as 10GB is prohibitively slow. PiperOrigin-RevId: 363714060
2021-03-16Fix tcp_fin_retransmission_netstack_testZeling Feng
Netstack does not check ACK number for FIN-ACK packets and goes into TIMEWAIT unconditionally. Fixing the state machine will give us back the retransmission of FIN. PiperOrigin-RevId: 363301883
2021-03-16Fix a race with synRcvdCount and acceptMithun Iyer
There is a race in handling new incoming connections on a listening endpoint that causes the endpoint to reply to more incoming SYNs than what is permitted by the listen backlog. The race occurs when there is a successful passive connection handshake and the synRcvdCount counter is decremented, followed by the endpoint delivered to the accept queue. In the window of time between synRcvdCount decrementing and the endpoint being enqueued for accept, new incoming SYNs can be handled without honoring the listen backlog value, as the backlog could be perceived not full. Fixes #5637 PiperOrigin-RevId: 363279372
2021-03-16setgid directory support in overlayfsKevin Krakauer
PiperOrigin-RevId: 363276495
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