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2019-11-11Merge release-20190806.1-389-g7730716 (automated)gVisor bot
2019-11-11Make `connect` on socket returned by `accept` correctly error out with EISCONNgVisor bot
PiperOrigin-RevId: 279814493
2019-11-09Merge release-20190806.1-388-g833dbba (automated)gVisor bot
2019-11-08Merge pull request #1158 from andrew-d:andrew/rules-gogVisor bot
PiperOrigin-RevId: 279425005
2019-11-09Merge release-20190806.1-386-gb91ad8f (automated)gVisor bot
2019-11-08test: merge log files of all shards for each test suiteAndrei Vagin
This significantly speeds up a process of uploading this files to sponge and resultstore by kokoro. PiperOrigin-RevId: 279416349
2019-11-08Merge release-20190806.1-385-g14f4461 (automated)gVisor bot
2019-11-08kokoro: update images to install zipAndrei Vagin
PiperOrigin-RevId: 279406266
2019-11-08Merge release-20190806.1-384-g50d6236 (automated)gVisor bot
2019-11-08Update kokoro images to install junitparserAndrei Vagin
junitparser will be used to merge junit xml files. PiperOrigin-RevId: 279387305
2019-11-08Merge release-20190806.1-383-gaf58a4e (automated)gVisor bot
2019-11-08Automated rollback of changelist 278417533Kevin Krakauer
PiperOrigin-RevId: 279365629
2019-11-07Bump gazelle to v0.19.1Andrew Dunham
2019-11-07Merge release-20190806.1-382-g66ebb65 (automated)gVisor bot
2019-11-07Add support for TIME_WAIT timeout.Bhasker Hariharan
This change adds explicit support for honoring the 2MSL timeout for sockets in TIME_WAIT state. It also adds support for the TCP_LINGER2 option that allows modification of the FIN_WAIT2 state timeout duration for a given socket. It also adds an option to modify the Stack wide TIME_WAIT timeout but this is only for testing. On Linux this is fixed at 60s. Further, we also now correctly process RST's in CLOSE_WAIT and close the socket similar to linux without moving it to error state. We also now handle SYN in ESTABLISHED state as per RFC5961#section-4.1. Earlier we would just drop these SYNs. Which can result in some tests that pass on linux to fail on gVisor. Netstack now honors TIME_WAIT correctly as well as handles the following cases correctly. - TCP RSTs in TIME_WAIT are ignored. - A duplicate TCP FIN during TIME_WAIT extends the TIME_WAIT and a dup ACK is sent in response to the FIN as the dup FIN indicates potential loss of the original final ACK. - An out of order segment during TIME_WAIT generates a dup ACK. - A new SYN w/ a sequence number > the highest sequence number in the previous connection closes the TIME_WAIT early and opens a new connection. Further to make the SYN case work correctly the ISN (Initial Sequence Number) generation for Netstack has been updated to be as per RFC. Its not a pure random number anymore and follows the recommendation in https://tools.ietf.org/html/rfc6528#page-3. The current hash used is not a cryptographically secure hash function. A separate change will update the hash function used to Siphash similar to what is used in Linux. PiperOrigin-RevId: 279106406
2019-11-07Merge release-20190806.1-381-g2326224 (automated)gVisor bot
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
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