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2020-12-11[netstack] Decouple tcpip.ControlMessages from the IP control messges.Ayush Ranjan
tcpip.ControlMessages can not contain Linux specific structures which makes it painful to convert back and forth from Linux to tcpip back to Linux when passing around control messages in hostinet and raw sockets. Now we convert to the Linux version of the control message as soon as we are out of tcpip. PiperOrigin-RevId: 347027065
2020-12-11Ensure individual steps timeout in case of infinite hang.Adin Scannell
Also, add a basic release test. PiperOrigin-RevId: 347016796
2020-12-11Make semctl IPC_INFO cmd return the index of highest used entry.Jing Chen
PiperOrigin-RevId: 346973338
2020-12-10Fix website buildIan Lewis
Fix 'run' function call so that parameters are passed properly to the function. PiperOrigin-RevId: 346929952
2020-12-10Change merkle root file name to avoid collisionChong Cai
PiperOrigin-RevId: 346923826
2020-12-10Disable host reassembly for fragments.Bhasker Hariharan
fdbased endpoint was enabling fragment reassembly on the host AF_PACKET socket to ensure that fragments are delivered inorder to the right dispatcher. But this prevents fragments from being delivered to gvisor at all and makes testing of gvisor's fragment reassembly code impossible. The potential impact from this is minimal since IP Fragmentation is not really that prevelant and in cases where we do get fragments we may deliver the fragment out of order to the TCP layer as multiple network dispatchers may process the fragments and deliver a reassembled fragment after the next packet has been delivered to the TCP endpoint. While not desirable I believe the impact from this is minimal due to low prevalence of fragmentation. Also removed PktType and Hatype fields when binding the socket as these are not used when binding. Its just confusing to have them specified. See: https://man7.org/linux/man-pages/man7/packet.7.html "Fields used for binding are sll_family (should be AF_PACKET), sll_protocol, and sll_ifindex." Fixes #5055 PiperOrigin-RevId: 346919439
2020-12-10Add simple guidelines & instructions for blog contributionIan Lewis
Modeled after knative's blog guidelines. https://github.com/knative/docs/blob/master/blog/README.md PiperOrigin-RevId: 346905713
2020-12-10Fix typo in go template error messages.Dean Deng
PiperOrigin-RevId: 346878344
2020-12-10Proposal for runtime.DedicateOSThread().Jamie Liu
Updates #2184 PiperOrigin-RevId: 346875966
2020-12-10Use specified source address for IGMP/MLD packetsGhanan Gowripalan
This change also considers interfaces and network endpoints enabled up up to the point all work to disable them are complete. This was needed so that protocols can perform shutdown work while being disabled (e.g. sending a packet which requires the endpoint to be enabled to obtain a source address). Bug #4682, #4861 Fixes #4888 Startblock: has LGTM from peterjohnston and then add reviewer brunodalbo PiperOrigin-RevId: 346869702
2020-12-10Log window sizeTamir Duberstein
Without this change, this test produces quite opaque errors as valid TCP segments are not logged; what we see in the end is any random traffic that happened *after* the final TCP segment. PiperOrigin-RevId: 346864169
2020-12-10Uncomment payload generationTamir Duberstein
PiperOrigin-RevId: 346852543
2020-12-10Correctly align non-matching layersTamir Duberstein
PiperOrigin-RevId: 346840424
2020-12-10Correctly print non-matching layersTamir Duberstein
PiperOrigin-RevId: 346818310
2020-12-09Tweak aarch64 support.Adin Scannell
A few images were broken with respect to aarch64. We should now be able to run push-all-images with ARCH=aarch64 as part of the regular continuous integration builds, and add aarch64 smoke tests (via user emulation for now) to the regular test suite (future). PiperOrigin-RevId: 346685462
2020-12-09Add support for IP_RECVORIGDSTADDR IP option.Bhasker Hariharan
Fixes #5004 PiperOrigin-RevId: 346643745
2020-12-09Add network benchmarks jobsZach Koopmans
Add httpd, nginx, node, and ruby benchmarks to continuous jobs. PiperOrigin-RevId: 346629115
2020-12-09Add //pkg/sync:generic_atomicptrmap.Jamie Liu
AtomicPtrMap is a generic concurrent map from arbitrary keys to arbitrary pointer values. Benchmarks: name time/op StoreDelete/RWMutexMap-12 335ns ± 1% StoreDelete/SyncMap-12 705ns ± 3% StoreDelete/AtomicPtrMap-12 287ns ± 4% StoreDelete/AtomicPtrMapSharded-12 289ns ± 1% LoadOrStoreDelete/RWMutexMap-12 342ns ± 2% LoadOrStoreDelete/SyncMap-12 662ns ± 2% LoadOrStoreDelete/AtomicPtrMap-12 290ns ± 7% LoadOrStoreDelete/AtomicPtrMapSharded-12 293ns ± 2% LookupPositive/RWMutexMap-12 101ns ±26% LookupPositive/SyncMap-12 202ns ± 2% LookupPositive/AtomicPtrMap-12 71.1ns ± 2% LookupPositive/AtomicPtrMapSharded-12 73.2ns ± 1% LookupNegative/RWMutexMap-12 119ns ± 1% LookupNegative/SyncMap-12 154ns ± 1% LookupNegative/AtomicPtrMap-12 84.7ns ± 3% LookupNegative/AtomicPtrMapSharded-12 86.8ns ± 1% Concurrent/FixedKeys_1PercentWrites_RWMutexMap-12 1.32µs ± 2% Concurrent/FixedKeys_1PercentWrites_SyncMap-12 52.7ns ±10% Concurrent/FixedKeys_1PercentWrites_AtomicPtrMap-12 31.8ns ±20% Concurrent/FixedKeys_1PercentWrites_AtomicPtrMapSharded-12 24.0ns ±15% Concurrent/FixedKeys_10PercentWrites_RWMutexMap-12 860ns ± 3% Concurrent/FixedKeys_10PercentWrites_SyncMap-12 68.8ns ±20% Concurrent/FixedKeys_10PercentWrites_AtomicPtrMap-12 98.6ns ± 7% Concurrent/FixedKeys_10PercentWrites_AtomicPtrMapSharded-12 42.0ns ±25% Concurrent/FixedKeys_50PercentWrites_RWMutexMap-12 1.17µs ± 3% Concurrent/FixedKeys_50PercentWrites_SyncMap-12 136ns ±34% Concurrent/FixedKeys_50PercentWrites_AtomicPtrMap-12 286ns ± 3% Concurrent/FixedKeys_50PercentWrites_AtomicPtrMapSharded-12 115ns ±35% Concurrent/ChangingKeys_1PercentWrites_RWMutexMap-12 1.27µs ± 2% Concurrent/ChangingKeys_1PercentWrites_SyncMap-12 5.01µs ± 3% Concurrent/ChangingKeys_1PercentWrites_AtomicPtrMap-12 38.1ns ± 3% Concurrent/ChangingKeys_1PercentWrites_AtomicPtrMapSharded-12 22.6ns ± 2% Concurrent/ChangingKeys_10PercentWrites_RWMutexMap-12 1.08µs ± 2% Concurrent/ChangingKeys_10PercentWrites_SyncMap-12 5.97µs ± 1% Concurrent/ChangingKeys_10PercentWrites_AtomicPtrMap-12 390ns ± 2% Concurrent/ChangingKeys_10PercentWrites_AtomicPtrMapSharded-12 93.6ns ± 1% Concurrent/ChangingKeys_50PercentWrites_RWMutexMap-12 1.77µs ± 2% Concurrent/ChangingKeys_50PercentWrites_SyncMap-12 8.07µs ± 2% Concurrent/ChangingKeys_50PercentWrites_AtomicPtrMap-12 1.61µs ± 2% Concurrent/ChangingKeys_50PercentWrites_AtomicPtrMapSharded-12 386ns ± 1% Updates #231 PiperOrigin-RevId: 346614776
2020-12-09Add tensorflow, ffmpeg, and redis jobs.Zach Koopmans
PiperOrigin-RevId: 346603153
2020-12-09[netstack] Make tcpip.Error savable.Ayush Ranjan
Earlier we could not save tcpip.Error objects in structs because upon restore the constant's address changes in netstack's error translation map and translating the error would panic because the map is based on the address of the tcpip.Error instead of the error itself. Now I made that translations map use the error message as key instead of the address. Added relevant synchronization mechanisms to protect the structure and initialize it upon restore. PiperOrigin-RevId: 346590485
2020-12-09Do not perform IGMP/MLD on loopback interfacesGhanan Gowripalan
The loopback interface will never have any neighbouring nodes so advertising its interest in multicast groups is unnecessary. Bug #4682, #4861 Startblock: has LGTM from asfez and then add reviewer tamird PiperOrigin-RevId: 346587604
2020-12-09Refactor the Makefile to avoid recursive Make.Adin Scannell
Recursive make is difficult to follow and debug. Drop this by using internal functions, which, while difficult, are easier than trying to following recursive invokations. Further simplify the Makefile by collapsing the image bits and removing the tools/vm directory, which is effectively unused. Fixes #4952 PiperOrigin-RevId: 346569133
2020-12-09Cap UDP payload size to length informed in UDP headerBruno Dal Bo
startblock: has LGTM from peterjohnston and then add reviewer ghanan,tamird PiperOrigin-RevId: 346565589
2020-12-09Prepare for supporting cross compilation.Andrei Vagin
PiperOrigin-RevId: 346496532
2020-12-09export MountTempDirectoryZeling Feng
PiperOrigin-RevId: 346487763
2020-12-09Advance RevIdAdin Scannell
This is an empty commit that advances the RevId below, to fix a repository synchronization issue. PiperOrigin-RevId: 346465449
2020-12-08Run tcpdump as rootTamir Duberstein
Prior to this change tcpdump would fail to create its output file because the destination directory was owned by root. This would later cause killall to fail, as tcpdump was not running. Check exit code of tcpdump/tshark to produce better error messages should this regress. PiperOrigin-RevId: 346353911
2020-12-08Consolidate sniffer program logicTamir Duberstein
Avoid action at a distance where both `snifferArgs` and `snifferProg` must stay in sync. PiperOrigin-RevId: 346341231
2020-12-07Fix error handling on fusefs mount.Rahat Mahmood
Don't propagate arbitrary golang errors up from fusefs because errors that don't map to an errno result in a sentry panic. Reported-by: syzbot+697cb635346e456fddfc@syzkaller.appspotmail.com PiperOrigin-RevId: 346220306
2020-12-07Remove detritusTamir Duberstein
- Remove unused constants - Correct function doc comment - Remove useless cast - Restore comment removed in an earlier change PiperOrigin-RevId: 346205943
2020-12-07Fix tags on benchmark targets.Zach Koopmans
PiperOrigin-RevId: 346203209
2020-12-07Export IGMP statsArthur Sfez
PiperOrigin-RevId: 346197760
2020-12-07Remove stale commentSam Balana
Removes comment lines about MaxUnsolicitedReportDelay. This is already documented in the comment for GenericMulticastProtocolOptions. PiperOrigin-RevId: 346185053
2020-12-07Merge pull request #4908 from lubinszARM:pr_kvm_ext_dabtgVisor bot
PiperOrigin-RevId: 346143528
2020-12-07Merge pull request #4874 from zhlhahaha:2022gVisor bot
PiperOrigin-RevId: 346134026
2020-12-07Avoid shadowing `testbench` packageTamir Duberstein
PiperOrigin-RevId: 346109185
2020-12-07Remove p9.fidRef.openedMuMichael Pratt
openedMu has lock ordering violations. Most locks go through OpenedFlag(), which is usually taken after renameMu and opMu. On the other hand, Tlopen takes openedMu before renameMu and opMu (via safelyRead). Resolving this violation is simple: just drop openedMu. The opened and openFlags fields are already protected by opMu in most cases, renameMu (for write) in one case (via safelyGlobal), and only in doWalk by neither. This is a bit ugly because opMu is supposed to be a "semantic" lock, but it works. I'm open to other suggestions. Note that doWalk has a race condition where a FID may open after the open check but before actually walking. This race existed before this change as well; it is not clear if it is problematic. PiperOrigin-RevId: 346108483
2020-12-07Support icmpv6 transport protocolPeter Johnston
PiperOrigin-RevId: 346101076
2020-12-06Merge pull request #4932 from lubinszARM:pr_test_exceptionsgVisor bot
PiperOrigin-RevId: 345976554
2020-12-05Fix zero receive window advertisements.Mithun Iyer
With the recent changes db36d948fa63ce950d94a5e8e9ebc37956543661, we try to balance the receive window advertisements between payload lengths vs segment overhead length. This works fine when segment size are much higher than the overhead, but not otherwise. In cases where the segment length is smaller than the segment overhead, we may end up not advertising zero receive window for long time and end up tail-dropping segments. This is especially pronounced when application socket reads are slow or stopped. In this change we do not grow the right edge of the receive window for smaller segment sizes similar to Linux. Also, we keep track of the socket buffer usage and let the window grow if the application is actively reading data. Fixes #4903 PiperOrigin-RevId: 345832012
2020-12-04Remove stack.ReadOnlyAddressableEndpointStateGhanan Gowripalan
Startblock: has LGTM from asfez and then add reviewer tamird PiperOrigin-RevId: 345815146
2020-12-04Overlay runsc regular file mounts with regular files.Jamie Liu
Fixes #4991 PiperOrigin-RevId: 345800333
2020-12-04Allow use of SeqAtomic with pointer-containing types.Jamie Liu
Per runtime.memmove, pointers are always copied atomically, as this is required by the GC. (Also, the init() safety check doesn't work because it gets renamed to <prefix>init() by template instantiation.) PiperOrigin-RevId: 345800302
2020-12-04Remove invalid test case.Adin Scannell
The next test case is perfectly valid, which creates a test directory with appropriate permissions and ensures that you can't create a file. This test case assumes that the root directory has certain permissions. In this case, we may have EROFS instead of a permission error, but it's perfectly plausible that no error occurs at all. The test is not valid. PiperOrigin-RevId: 345764412
2020-12-04Update containerd tests for 1.4+ to 1.4.3.Adin Scannell
PiperOrigin-RevId: 345764404
2020-12-04Initialize has_tid for correctness.Adin Scannell
PiperOrigin-RevId: 345763209
2020-12-04Fix load-benchmarks-images call.Zach Koopmans
make load-benchmarks-images is empty with the deleted line. PiperOrigin-RevId: 345741855
2020-12-04Introduce IPv4 options serializer and add RouterAlert to IGMPBruno Dal Bo
PiperOrigin-RevId: 345701623
2020-12-04Avoid fallocate(FALLOC_FL_PUNCH_HOLE) when ManualZeroing is in effect.Jamie Liu
PiperOrigin-RevId: 345696124
2020-12-04Require sync.RWMutex to lock and unlock from the same goroutineMichael Pratt
This is the RWMutex equivalent to the preceding sync.Mutex CL. Updates #4804 PiperOrigin-RevId: 345681051
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