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2019-09-18Merge release-20190806.1-156-gc98e7f0 (automated)gVisor bot
2019-09-18Signalfd supportAdin Scannell
Note that the exact semantics for these signalfds are slightly different from Linux. These signalfds are bound to the process at creation time. Reads, polls, etc. are all associated with signals directed at that task. In Linux, all signalfd operations are associated with current, regardless of where the signalfd originated. In practice, this should not be an issue given how signalfds are used. In order to fix this however, we will need to plumb the context through all the event APIs. This gets complicated really quickly, because the waiter APIs are all netstack-specific, and not generally exposed to the context. Probably not worthwhile fixing immediately. PiperOrigin-RevId: 269901749
2019-09-17Merge release-20190806.1-153-g60fe871 (automated)gVisor bot
2019-09-17Automated rollback of changelist 268047073Ghanan Gowripalan
PiperOrigin-RevId: 269658971
2019-09-17Merge release-20190806.1-151-g3b7119a (automated)gVisor bot
2019-09-17platform/ptrace: log exit code for stub processesAndrei Vagin
PiperOrigin-RevId: 269631877
2019-09-17Update remaining users of LinkEndpoints to not refer to them as an ID.Ian Gudger
PiperOrigin-RevId: 269614517
2019-09-14Merge release-20190806.1-145-g239a07a (automated)gVisor bot
2019-09-13gvisor: return ENOTDIR from the unlink syscallAndrei Vagin
ENOTDIR has to be returned when a component used as a directory in pathname is not, in fact, a directory. PiperOrigin-RevId: 269037893
2019-09-13Merge release-20190806.1-143-ga8834fc (automated)gVisor bot
2019-09-12Update p9 to support flipcall.Adin Scannell
PiperOrigin-RevId: 268845090
2019-09-13Merge release-20190806.1-142-g7c6ab6a (automated)gVisor bot
2019-09-12Implement splice methods for pipes and sockets.Adin Scannell
This also allows the tee(2) implementation to be enabled, since dup can now be properly supported via WriteTo. Note that this change necessitated some minor restructoring with the fs.FileOperations splice methods. If the *fs.File is passed through directly, then only public API methods are accessible, which will deadlock immediately since the locking is already done by fs.Splice. Instead, we pass through an abstract io.Reader or io.Writer, which elide locks and use the underlying fs.FileOperations directly. PiperOrigin-RevId: 268805207
2019-09-12Remove go_test from go_stateify and go_marshalMichael Pratt
They are no-ops, so the standard rule works fine. PiperOrigin-RevId: 268776264
2019-09-12Merge release-20190806.1-138-g857940d (automated)gVisor bot
2019-09-12Automated rollback of changelist 268047073Ghanan Gowripalan
PiperOrigin-RevId: 268757842
2019-09-12Merge release-20190806.1-133-g1e6bdd5 (automated)gVisor bot
2019-09-09Merge 9dfcd8b0 (automated)gVisor bot
2019-09-09Fix ephemeral port leak.Ian Gudger
Fix a bug where udp.(*endpoint).Disconnect [accessible in gVisor via epsocket.(*SocketOperations).Connect with AF_UNSPEC] would leak a port reservation if the socket/endpoint had an ephemeral port assigned to it. glibc's getaddrinfo uses connect with AF_UNSPEC, causing each call of getaddrinfo to leak a port. Call getaddrinfo too many times and you run out of ports (shows up as connect returning EAGAIN and getaddrinfo returning EAI_NONAME "Name or service not known"). PiperOrigin-RevId: 268071160
2019-09-09Merge 3733b9b8 (automated)gVisor bot
2019-09-09go_marshal: Implement automatic generation of ABI marshalling code.Rahat Mahmood
This CL implements go_marshal, a code generation utility for automatically serializing and deserializing ABI structs. The go_marshal tool automatically generates implementations of the new marshal interface. Unlike binary.Marshal/Unmarshal, the generated interface implementations use no runtime reflection, and translates to a single memcpy for most structs. See go_marshal/README.md for details. PiperOrigin-RevId: 268065475
2019-09-09Merge 6af9a985 (automated)gVisor bot
2019-09-09Join IPv6 all-nodes and solicited-node multicast addresses where appropriate.Ghanan Gowripalan
The IPv6 all-nodes multicast address will be joined on NIC enable, and the appropriate IPv6 solicited-node multicast address will be joined when IPv6 addresses are added. Tests: Test receiving packets destined to the IPv6 link-local all-nodes multicast address and the IPv6 solicted node address of an added IPv6 address. PiperOrigin-RevId: 268047073
2019-09-07Merge fe1f5210 (automated)gVisor bot
2019-09-06Remove reundant global tcpip.LinkEndpointID.Ian Gudger
PiperOrigin-RevId: 267709597
2019-09-07Merge 9e1cbdf5 (automated)gVisor bot
2019-09-06Indicate flipcall synchronization to the Go race detector.Jamie Liu
Since each Endpoint has a distinct mapping of the packet window, the Go race detector does not recognize accesses by connected Endpoints to be related. This means that this change isn't necessary for the Go race detector to accept accesses of flipcall.Endpoint.Data(), but it *is* necessary for it to accept accesses to shared variables outside the scope of flipcall that are synchronized by flipcall.Endpoint state; see updated test for an example. RaceReleaseMerge is needed (instead of RaceRelease) because calls to raceBecomeInactive() from *unrelated* Endpoints can occur in any order. (DowngradableRWMutex.RUnlock() has a similar property: calls to RUnlock() on the same DowngradableRWMutex from different goroutines can occur in any order. Remove the TODO asking to explain this now that this is understood.) PiperOrigin-RevId: 267705325
2019-09-06Merge 98f7fbb5 (automated)gVisor bot
2019-09-06Merge 0bfffbcb (automated)gVisor bot
2019-09-06Merge 7e94f171 (automated)gVisor bot
2019-09-05Better strace logs for statx.Nicolas Lacasse
PiperOrigin-RevId: 267498537
2019-09-05Merge 487c6f03 (automated)gVisor bot
2019-09-05Merge fbdd3ff1 (automated)gVisor bot
2019-09-05Merge fbbb2f7e (automated)gVisor bot
2019-09-04Fix RST generation bugs.Bhasker Hariharan
There are a few cases addressed by this change - We no longer generate a RST in response to a RST packet. - When we receive a RST we cleanup and release all reservations immediately as the connection is now aborted. - An ACK received by a listening socket generates a RST when SYN cookies are not in-use. The only reason an ACK should land at the listening socket is if we are using SYN cookies otherwise the goroutine for the handshake in progress should have gotten the packet and it should never have arrived at the listening endpoint. - Also fixes the error returned when a connection times out due to a Keepalive timer expiration from ECONNRESET to a ETIMEDOUT. PiperOrigin-RevId: 267238427
2019-09-04Handle subnet and broadcast addresses correctly with NIC.subnetsChris Kuiper
This also renames "subnet" to "addressRange" to avoid any more confusion with an interface IP's subnet. Lastly, this also removes the Stack.ContainsSubnet(..) API since it isn't used by anyone. Plus the same information can be obtained from Stack.NICAddressRanges(). PiperOrigin-RevId: 267229843
2019-09-04Merge 67a2ab14 (automated)gVisor bot
2019-09-03Impose order on test scripts.Adin Scannell
The simple test script has gotten out of control. Shard this script into different pieces and attempt to impose order on overall test structure. This change helps lay some of the foundations for future improvements. * The runsc/test directories are moved into just test/. * The runsc/test/testutil package is split into logical pieces. * The scripts/ directory contains new top-level targets. * Each test is now responsible for building targets it requires. * The install functionality is moved into `runsc` itself for simplicity. * The existing kokoro run_tests.sh file now just calls all (can be split). After this change is merged, I will create multiple distinct workflows for Kokoro, one for each of the scripts currently targeted by `run_tests.sh` today, which should dramatically reduce the time-to-run for the Kokoro tests, and provides a better foundation for further improvements to the infrastructure. PiperOrigin-RevId: 267081397
2019-09-04Merge 144127e5 (automated)gVisor bot
2019-09-03Validate IPv6 Hop Limit field for received NDP packetsGhanan Gowripalan
Make sure that NDP packets are only received if their IP header's hop limit field is set to 255, as per RFC 4861. PiperOrigin-RevId: 267061457
2019-09-03Merge 3789c34b (automated)gVisor bot
2019-09-03Make UDP traceroute work.Bhasker Hariharan
Adds support to generate Port Unreachable messages for UDP datagrams received on a port for which there is no valid endpoint. Fixes #703 PiperOrigin-RevId: 267034418
2019-09-03Merge eb94066e (automated)gVisor bot
2019-09-03Ensure that flipcall.Endpoint.Shutdown() shuts down inactive peers.Jamie Liu
PiperOrigin-RevId: 267022978
2019-09-03Merge 648170f5 (automated)gVisor bot
2019-09-02Remove duplicated file in pkg/tcpip/link/rawfile.Haibo Xu
The blockingpoll_unsafe.go was copied to blockingpoll_noyield_unsafe.go during merging commit 7206202bb9439499. If it still stay here, it would cause build errors on non-amd64 platform. ERROR: pkg/tcpip/link/rawfile/BUILD:5:1: GoCompilePkg pkg/tcpip/link/rawfile.a failed (Exit 1) builder failed: error executing command bazel-out/host/bin/external/go_sdk/builder compilepkg -sdk external/go_sdk -installsuffix linux_arm64 -src pkg/tcpip/link/rawfile/blockingpoll_noyield_unsafe.go -src ... (remaining 33 argument(s) skipped) Use --sandbox_debug to see verbose messages from the sandbox compilepkg: error running subcommand: exit status 2 pkg/tcpip/link/rawfile/blockingpoll_yield_unsafe.go:35:6: BlockingPoll redeclared in this block previous declaration at pkg/tcpip/link/rawfile/blockingpoll_unsafe.go:26:78 Target //pkg/tcpip/link/rawfile:rawfile failed to build Use --verbose_failures to see the command lines of failed build steps. INFO: Elapsed time: 25.531s, Critical Path: 21.08s INFO: 262 processes: 262 linux-sandbox. FAILED: Build did NOT complete successfully Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I4e21f82984225d0aa173de456f7a7c66053a053e
2019-08-31Merge 0352cf58 (automated)gVisor bot
2019-08-30Remove support for non-incremental mapped accounting.Jamie Liu
PiperOrigin-RevId: 266496644
2019-08-31Merge f3dabdfc (automated)gVisor bot
2019-08-30Automated rollback of changelist 261387276Bhasker Hariharan
PiperOrigin-RevId: 266491264
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