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2020-01-13Fix test building.Kevin Krakauer
2020-01-13Only allow INPUT modifications.Kevin Krakauer
2020-01-13Merge branch 'master' into iptables-write-input-dropKevin Krakauer
2020-01-13Merge pull request #1528 from kevinGC:iptables-writegVisor bot
PiperOrigin-RevId: 289479774
2020-01-13tests: fix errors detected by asan.Andrei Vagin
PiperOrigin-RevId: 289467083
2020-01-10Don't set RWF_HIPRI on InvalidOffset test.Brad Burlage
This test fails on ubuntu 18.04 because preadv2 for some reason returns EOPNOTSUPP instead of EINVAL. Instead of root-causing the failure, I'm dropping the flag in the preadv2 call since it isn't under test in this scenario. PiperOrigin-RevId: 289188358
2020-01-10Automated rollback of changelist 288990597Ghanan Gowripalan
PiperOrigin-RevId: 289169518
2020-01-10Put CancellableTimer tests in the tcpip_test packageGhanan Gowripalan
CancellableTimer tests were in a timer_test package but lived within the tcpip directory. This caused issues with go tools. PiperOrigin-RevId: 289166345
2020-01-10Cleaned up logs.Kevin Krakauer
2020-01-10goid: new packageIan Gudger
Allows retrieving the goroutine ID for concurrency testing when the race detector is enabled. Updates #1472 PiperOrigin-RevId: 289155308
2020-01-10panic fix in retransmitTimerExpired.Bhasker Hariharan
This is a band-aid fix for now to prevent panics. PiperOrigin-RevId: 289078453
2020-01-09New sync package.Ian Gudger
* Rename syncutil to sync. * Add aliases to sync types. * Replace existing usage of standard library sync package. This will make it easier to swap out synchronization primitives. For example, this will allow us to use primitives from github.com/sasha-s/go-deadlock to check for lock ordering violations. Updates #1472 PiperOrigin-RevId: 289033387
2020-01-09Merge pull request #1523 from majek:fix-1522-silly-window-rxgVisor bot
PiperOrigin-RevId: 289019953
2020-01-09Deflake a couple of TCP syscall tests when run under gotsan.Bhasker Hariharan
PiperOrigin-RevId: 289010316
2020-01-09Implement gcloud_producer for bm-toolsZach Koopmans
bm-tools works via "Machine" objects, which are front objects for actual virtual or physical machines. glcoud_producer produces machines on GCP using the `gcloud` tool. Included are: - GCloudProducer - the class producing machines - MockGCloudProducer - class for mocking GCloudProducer. - tests using the mock - test data as .json files. Code to generate this test data may be included in a follow up. PiperOrigin-RevId: 289005958
2020-01-09Inform NDPDispatcher when Stack learns about available configurations via DHCPv6Ghanan Gowripalan
Inform the Stack's NDPDispatcher when it receives an NDP Router Advertisement that updates the available configurations via DHCPv6. The Stack makes sure that its NDPDispatcher isn't informed unless the avaiable configurations via DHCPv6 for a NIC is updated. Tests: Test that a Stack's NDPDispatcher is informed when it receives an NDP Router Advertisement that informs it of new configurations available via DHCPv6. PiperOrigin-RevId: 289001283
2020-01-09Separate NDP tests into its own packageGhanan Gowripalan
Internal tools timeout after 60s during tests that are required to pass before changes can be submitted. Separate out NDP tests into its own package to help prevent timeouts when testing. PiperOrigin-RevId: 288990597
2020-01-09Merge pull request #1423 from xiaobo55x:stracegVisor bot
PiperOrigin-RevId: 288965915
2020-01-09Change BindToDeviceOption to store NICIDEyal Soha
This makes it possible to call the sockopt from go even when the NIC has no name. PiperOrigin-RevId: 288955236
2020-01-09Allow clients to store an opaque NICContext with NICsBert Muthalaly
...retrievable later via stack.NICInfo(). Clients of this library can use it to add metadata that should be tracked alongside a NIC, to avoid having to keep a map[tcpip.NICID]metadata mirroring stack.Stack's nic map. PiperOrigin-RevId: 288924900
2020-01-09Configure issue reviver to run with KokoroFabricio Voznika
PiperOrigin-RevId: 288921032
2020-01-08It works! It drops some packets.Kevin Krakauer
2020-01-08Merge branch 'iptables-write' into iptables-write-input-dropKevin Krakauer
2020-01-08CancellableTimer to encapsulate the work of safely stopping timersGhanan Gowripalan
Add a new CancellableTimer type to encapsulate the work of safely stopping timers when it fires at the same time some "related work" is being handled. The term "related work" is some work that needs to be done while having obtained some common lock (L). Example: Say we have an invalidation timer that may be extended or cancelled by some event. Creating a normal timer and simply cancelling may not be sufficient as the timer may have already fired when the event handler attemps to cancel it. Even if the timer and event handler obtains L before doing work, once the event handler releases L, the timer will eventually obtain L and do some unwanted work. To prevent the timer from doing unwanted work, it checks if it should early return instead of doing the normal work after obtaining L. When stopping the timer callers must have L locked so the timer can be safely informed that it should early return. Test: Tests that CancellableTimer fires and resets properly. Test to make sure the timer fn is not called after being stopped within the lock L. PiperOrigin-RevId: 288806984
2020-01-08More GH comments.Kevin Krakauer
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
2020-01-08Define sizes for extent headers and entries separately to improve clarity.Dean Deng
PiperOrigin-RevId: 288799694
2020-01-08Addressed GH commentsKevin Krakauer
2020-01-08Fix slice bounds out of range panic in parsing socket control message.Ting-Yu Wang
Panic found by syzakller. PiperOrigin-RevId: 288799046
2020-01-08Github bug reviverFabricio Voznika
For everyone's joy, this is a tool that reopens issues that have been closed, but are still referenced by TODOs in the code. The idea is to run it in Kokoro nightly. Kokoro changes are coming up next. PiperOrigin-RevId: 288789560
2020-01-08Getting a panic when running tests. For some reason the filter table isKevin Krakauer
ending up with the wrong chains and is indexing -1 into rules.
2020-01-08Introduce tcpip.SockOptBoolTamir Duberstein
...and port V6OnlyOption to it. PiperOrigin-RevId: 288789451
2020-01-08Combine various Create*NIC methods into CreateNICWithOptions.Bert Muthalaly
PiperOrigin-RevId: 288779416
2020-01-08Built dead-simple traversal, but now getting depedency cycle error :'(Kevin Krakauer
2020-01-08Rename tcpip.SockOpt{,Int}Tamir Duberstein
PiperOrigin-RevId: 288772878
2020-01-08Take addresses as constTamir Duberstein
PiperOrigin-RevId: 288767927
2020-01-08Added test for unconditional DROP on the filter INPUT chainKevin Krakauer
2020-01-08First commit -- re-adding DROPKevin Krakauer
2020-01-08Merge pull request #1273 from lubinszARM:pr_ring_3gVisor bot
PiperOrigin-RevId: 288743614
2020-01-08Revert go.mod and go.sumKevin Krakauer
2020-01-08Comment cleanup.Kevin Krakauer
2020-01-08NewlineKevin Krakauer
2020-01-08Revert filter_input changeKevin Krakauer
2020-01-08Minor fixes to comments and loggingKevin Krakauer
2020-01-08Make /proc/[pid] offset start at TGID_OFFSETFabricio Voznika
Updates #1195 PiperOrigin-RevId: 288725745
2020-01-08Remove redundant function argumentTamir Duberstein
PacketLooping is already a member on the passed Route. PiperOrigin-RevId: 288721500
2020-01-08Write simple ACCEPT rules to the filter table.Kevin Krakauer
This gets us closer to passing the iptables tests and opens up iptables so it can be worked on by multiple people. A few restrictions are enforced for security (i.e. we don't want to let users write a bunch of iptables rules and then just not enforce them): - Only the filter table is writable. - Only ACCEPT rules with no matching criteria can be added.
2020-01-08Add NIC.isLoopback()Bert Muthalaly
...enabling us to remove the "CreateNamedLoopbackNIC" variant of CreateNIC and all the plumbing to connect it through to where the value is read in FindRoute. PiperOrigin-RevId: 288713093
2020-01-08Fix #1522 - implement silly window sydrome protection on rx sideMarek Majkowski
Before, each of small read()'s that raises window either from zero or above threshold of aMSS, would generate an ACK. In a classic silly-window-syndrome scenario, we can imagine a pessimistic case when small read()'s generate a stream of ACKs. This PR fixes that, essentially treating window size < aMSS as zero. We send ACK exactly in a moment when window increases to >= aMSS or half of receive buffer size (whichever smaller).
2020-01-07fs/splice: don't report a partialResult error if there is no data lossAndrei Vagin
PiperOrigin-RevId: 288642552
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