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2019-11-06Fix yet another data race.Bhasker Hariharan
Fixes #1140 PiperOrigin-RevId: 279020846
2019-11-07Merge release-20190806.1-380-g3552691 (automated)gVisor bot
2019-11-06Fix data race in syscall_test_runner.goBhasker Hariharan
Fixes #1140 PiperOrigin-RevId: 279012793
2019-11-07Merge release-20190806.1-379-g0c424ea (automated)gVisor bot
2019-11-06Rename nicid to nicID to follow go-readability initialismsGhanan Gowripalan
https://github.com/golang/go/wiki/CodeReviewComments#initialisms This change does not introduce any new functionality. It just renames variables from `nicid` to `nicID`. PiperOrigin-RevId: 278992966
2019-11-07Merge release-20190806.1-378-gadb10f4 (automated)gVisor bot
2019-11-06Internal change.gVisor bot
PiperOrigin-RevId: 278979065
2019-11-07Merge release-20190806.1-377-gf8ffadd (automated)gVisor bot
2019-11-06Add p9.OpenTruncate.Jamie Liu
This is required to implement O_TRUNC correctly on filesystems backed by gofers. 9P2000.L: "lopen prepares fid for file I/O. flags contains Linux open(2) flags bits, e.g. O_RDONLY, O_RDWR, O_WRONLY." open(2): "The argument flags must include one of the following access modes: O_RDONLY, O_WRONLY, or O_RDWR. ... In addition, zero or more file creation flags and file status flags can be bitwise-or'd in flags." The reference 9P2000.L implementation also appears to expect arbitrary flags, not just access modes, in Tlopen.flags: https://github.com/chaos/diod/blob/master/diod/ops.c#L703 PiperOrigin-RevId: 278972683
2019-11-07Merge release-20190806.1-376-ge63db5e (automated)gVisor bot
2019-11-06Discover default routers from Router AdvertisementsGhanan Gowripalan
This change allows the netstack to do NDP's Router Discovery as outlined by RFC 4861 section 6.3.4. Note, this change will not break existing uses of netstack as the default configuration for the stack options is set in such a way that Router Discovery will not be performed. See `stack.Options` and `stack.NDPConfigurations` for more details. This change introduces 2 options required to take advantage of Router Discovery, all available under NDPConfigurations: - HandleRAs: Whether or not NDP RAs are processes - DiscoverDefaultRouters: Whether or not Router Discovery is performed Another note: for a NIC to process Router Advertisements, it must not be a router itself. Currently the netstack does not have per-interface routing configuration; the routing/forwarding configuration is controlled stack-wide. Therefore, if the stack is configured to enable forwarding/routing, no Router Advertisements will be processed. Tests: Unittest to make sure that Router Discovery and updates to the routing table only occur if explicitly configured to do so. Unittest to make sure at max stack.MaxDiscoveredDefaultRouters discovered default routers are remembered. PiperOrigin-RevId: 278965143
2019-11-06Merge release-20190806.1-375-ge1b21f3 (automated)gVisor bot
2019-11-06Use PacketBuffers, rather than VectorisedViews, in netstack.Kevin Krakauer
PacketBuffers are analogous to Linux's sk_buff. They hold all information about a packet, headers, and payload. This is important for: * iptables to access various headers of packets * Preventing the clutter of passing different net and link headers along with VectorisedViews to packet handling functions. This change only affects the incoming packet path, and a future change will change the outgoing path. Benchmark Regular PacketBufferPtr PacketBufferConcrete -------------------------------------------------------------------------------- BM_Recvmsg 400.715MB/s 373.676MB/s 396.276MB/s BM_Sendmsg 361.832MB/s 333.003MB/s 335.571MB/s BM_Recvfrom 453.336MB/s 393.321MB/s 381.650MB/s BM_Sendto 378.052MB/s 372.134MB/s 341.342MB/s BM_SendmsgTCP/0/1k 353.711MB/s 316.216MB/s 322.747MB/s BM_SendmsgTCP/0/2k 600.681MB/s 588.776MB/s 565.050MB/s BM_SendmsgTCP/0/4k 995.301MB/s 888.808MB/s 941.888MB/s BM_SendmsgTCP/0/8k 1.517GB/s 1.274GB/s 1.345GB/s BM_SendmsgTCP/0/16k 1.872GB/s 1.586GB/s 1.698GB/s BM_SendmsgTCP/0/32k 1.017GB/s 1.020GB/s 1.133GB/s BM_SendmsgTCP/0/64k 475.626MB/s 584.587MB/s 627.027MB/s BM_SendmsgTCP/0/128k 416.371MB/s 503.434MB/s 409.850MB/s BM_SendmsgTCP/0/256k 323.449MB/s 449.599MB/s 388.852MB/s BM_SendmsgTCP/0/512k 243.992MB/s 267.676MB/s 314.474MB/s BM_SendmsgTCP/0/1M 95.138MB/s 95.874MB/s 95.417MB/s BM_SendmsgTCP/0/2M 96.261MB/s 94.977MB/s 96.005MB/s BM_SendmsgTCP/0/4M 96.512MB/s 95.978MB/s 95.370MB/s BM_SendmsgTCP/0/8M 95.603MB/s 95.541MB/s 94.935MB/s BM_SendmsgTCP/0/16M 94.598MB/s 94.696MB/s 94.521MB/s BM_SendmsgTCP/0/32M 94.006MB/s 94.671MB/s 94.768MB/s BM_SendmsgTCP/0/64M 94.133MB/s 94.333MB/s 94.746MB/s BM_SendmsgTCP/0/128M 93.615MB/s 93.497MB/s 93.573MB/s BM_SendmsgTCP/0/256M 93.241MB/s 95.100MB/s 93.272MB/s BM_SendmsgTCP/1/1k 303.644MB/s 316.074MB/s 308.430MB/s BM_SendmsgTCP/1/2k 537.093MB/s 584.962MB/s 529.020MB/s BM_SendmsgTCP/1/4k 882.362MB/s 939.087MB/s 892.285MB/s BM_SendmsgTCP/1/8k 1.272GB/s 1.394GB/s 1.296GB/s BM_SendmsgTCP/1/16k 1.802GB/s 2.019GB/s 1.830GB/s BM_SendmsgTCP/1/32k 2.084GB/s 2.173GB/s 2.156GB/s BM_SendmsgTCP/1/64k 2.515GB/s 2.463GB/s 2.473GB/s BM_SendmsgTCP/1/128k 2.811GB/s 3.004GB/s 2.946GB/s BM_SendmsgTCP/1/256k 3.008GB/s 3.159GB/s 3.171GB/s BM_SendmsgTCP/1/512k 2.980GB/s 3.150GB/s 3.126GB/s BM_SendmsgTCP/1/1M 2.165GB/s 2.233GB/s 2.163GB/s BM_SendmsgTCP/1/2M 2.370GB/s 2.219GB/s 2.453GB/s BM_SendmsgTCP/1/4M 2.005GB/s 2.091GB/s 2.214GB/s BM_SendmsgTCP/1/8M 2.111GB/s 2.013GB/s 2.109GB/s BM_SendmsgTCP/1/16M 1.902GB/s 1.868GB/s 1.897GB/s BM_SendmsgTCP/1/32M 1.655GB/s 1.665GB/s 1.635GB/s BM_SendmsgTCP/1/64M 1.575GB/s 1.547GB/s 1.575GB/s BM_SendmsgTCP/1/128M 1.524GB/s 1.584GB/s 1.580GB/s BM_SendmsgTCP/1/256M 1.579GB/s 1.607GB/s 1.593GB/s PiperOrigin-RevId: 278940079
2019-11-06Merge release-20190806.1-374-gd0d89ce (automated)gVisor bot
2019-11-06Send a TCP RST in response to a TCP SYN-ACK on a listening endpointGhanan Gowripalan
This change better follows what is outlined in RFC 793 section 3.4 figure 12 where a listening socket should not accept a SYN-ACK segment in response to a (potentially) old SYN segment. Tests: Test that checks the TCP RST segment sent in response to a TCP SYN-ACK segment received on a listening TCP endpoint. PiperOrigin-RevId: 278893114
2019-11-06Merge release-20190806.1-373-ga824b48 (automated)gVisor bot
2019-11-06Validate incoming NDP Router Advertisements, as per RFC 4861 section 6.1.2Ghanan Gowripalan
This change validates incoming NDP Router Advertisements as per RFC 4861 section 6.1.2. It also includes the skeleton to handle Router Advertiements that arrive on some NIC. Tests: Unittest to make sure only valid NDP Router Advertisements are received/ not dropped. PiperOrigin-RevId: 278891972
2019-11-06Merge release-20190806.1-372-g57f6dbc (automated)gVisor bot
2019-11-05test/root: check that memory accouting works as expectedAndrei Vagin
PiperOrigin-RevId: 278739427
2019-11-05Merge release-20190806.1-371-ge904823 (automated)gVisor bot
2019-11-05Fix repository build scripts.Adin Scannell
This fixes a number of issues with the repository build process: * Fix the overall structure of the repository. * Fix the debian package description. * Fix the broken version number for packages. * Update the digest algorithm used for signing the release. I've validated that installation works from a separate staging bucket. Updates #852 PiperOrigin-RevId: 278716914
2019-11-05Merge release-20190806.1-370-g493334f (automated)gVisor bot
2019-11-04kokoro: run KVM syscall testsAndrei Vagin
We don't know how stable they are, so let's start with warning. PiperOrigin-RevId: 278484186
2019-11-04Merge release-20190806.1-369-g1e21496 (automated)gVisor bot
2019-11-04Bump rules_go to v0.20.2 and go toolchain to v1.13.4.Nicolas Lacasse
PiperOrigin-RevId: 278424814
2019-11-04Merge release-20190806.1-368-g4fdd69d (automated)gVisor bot
2019-11-04Check that a file is a regular file with open(O_TRUNC).Kevin Krakauer
It was possible to panic the sentry by opening a cache revalidating folder with O_TRUNC|O_CREAT. PiperOrigin-RevId: 278417533
2019-11-04Merge release-20190806.1-367-gb23b36e (automated)gVisor bot
2019-11-04Add NETLINK_KOBJECT_UEVENT socket supportMichael Pratt
NETLINK_KOBJECT_UEVENT sockets send udev-style messages for device events. gVisor doesn't have any device events, so our sockets don't need to do anything once created. systemd's device manager needs to be able to create one of these sockets. It also wants to install a BPF filter on the socket. Since we'll never send any messages, the filter would never be invoked, thus we just fake it out. Fixes #1117 Updates #1119 PiperOrigin-RevId: 278405893
2019-11-04Merge release-20190806.1-366-g3b4f544 (automated)gVisor bot
2019-11-04Update membarrier bugMichael Pratt
Updates #267 PiperOrigin-RevId: 278402684
2019-11-02Merge release-20190806.1-365-g802a3b3 (automated)gVisor bot
2019-11-01Merge pull request #1109 from xiaobo55x:fsgofergVisor bot
PiperOrigin-RevId: 278032567
2019-11-01Merge release-20190806.1-363-g515fee5 (automated)gVisor bot
2019-11-01Add SO_PASSCRED support to netlink socketsMichael Pratt
Since we only supporting sending messages from the kernel, the peer is always the kernel, simplifying handling. There are currently no known users of SO_PASSCRED that would actually receive messages from gVisor, but adding full support is barely more work than stubbing out fake support. Updates #1117 Fixes #1119 PiperOrigin-RevId: 277981465
2019-11-01Merge release-20190806.1-362-g2a709a1 (automated)gVisor bot
2019-11-01Add "manual" tag back to runtime tests.Nicolas Lacasse
PiperOrigin-RevId: 277971910
2019-11-01Merge release-20190806.1-361-ge70f286 (automated)gVisor bot
2019-11-01Allow the watchdog to detect when the sandbox is stuck during setup.Nicolas Lacasse
The watchdog currently can find stuck tasks, but has no way to tell if the sandbox is stuck before the application starts executing. This CL adds a startup timeout and action to the watchdog. If Start() is not called before the given timeout (if non-zero), then the watchdog will take the action. PiperOrigin-RevId: 277970577
2019-11-01Merge release-20190806.1-360-g5694bd0 (automated)gVisor bot
2019-11-01Don't log "p9.channel.service: flipcall connection shutdown".Jamie Liu
This gets quite spammy, especially in tests. PiperOrigin-RevId: 277970468
2019-11-01Merge release-20190806.1-359-gaf6af2c (automated)gVisor bot
2019-11-01tests: don't use ASSERT_THAT after forkAndrei Vagin
PiperOrigin-RevId: 277965624
2019-11-01Merge release-20190806.1-358-ga99d347 (automated)gVisor bot
2019-10-31Add context to state.Adin Scannell
PiperOrigin-RevId: 277840416
2019-11-01Merge release-20190806.1-357-g36837c4 (automated)gVisor bot
2019-10-31Add systemd-cgroup flag option.Ian Lewis
Adds a systemd-cgroup flag option that prints an error letting the user know that systemd cgroups are not supported and points them to the relevant issue. Issue #193 PiperOrigin-RevId: 277837162
2019-10-31Merge release-20190806.1-356-gfe2e076 (automated)gVisor bot
2019-10-31Add LICENSE and AUTHORS to the go branch.Adin Scannell
Also, construct the README directly so that edits can be made. PiperOrigin-RevId: 277782095
2019-10-31Merge release-20190806.1-355-gf7dbdda (automated)gVisor bot
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