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2019-11-22Use PacketBuffers with GSO.Kevin Krakauer
PiperOrigin-RevId: 282045221
2019-11-22Add segment dequeue check while emptying segment queue.Mithun Iyer
PiperOrigin-RevId: 282023891
2019-11-22enable ring0/pagetables to support arm64lubinszARM
Signed-off-by: Bin Lu <bin.lu@arm.com> COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/891 from lubinszARM:pr_pagetable 2385de75a8662af3ab1ae289dd74dd0e5dcfaf66 PiperOrigin-RevId: 282013224
2019-11-22tests: include sys/socket.h before linux/if_arp.hAndrei Vagin
This is how it has to be accoding to the man page. PiperOrigin-RevId: 281998068
2019-11-21Import and structure cleanup.Adin Scannell
PiperOrigin-RevId: 281795269
2019-11-20Use a GitHub credential for tagging a release.Adin Scannell
PiperOrigin-RevId: 281617882
2019-11-20Pass OpenTruncate to gofer in Open call when opening file with O_TRUNC.Nicolas Lacasse
Note that the Sentry still calls Truncate() on the file before calling Open. A new p9 version check was added to ensure that the p9 server can handle the the OpenTruncate flag. If not, then the flag is stripped before sending. PiperOrigin-RevId: 281609112
2019-11-18Add vfs.GenericParseMountOptions().Jamie Liu
Equivalent to fs.GenericMountSourceOptions(). PiperOrigin-RevId: 281179287
2019-11-18platform/ptrace: use host.GetCPU instead of the getcpu syscallAndrei Vagin
This should save ~200ns from switchToApp (on ptrace too). // mpratt PiperOrigin-RevId: 281159895
2019-11-18Merge pull request #1177 from xiaobo55x:fs_hostgVisor bot
PiperOrigin-RevId: 281112758
2019-11-18release: fix tag scriptAdin Scannell
The tag script, when not run interactively, will fail without a provided commit message (since it now uses annotated tags). For now, use a trivial message. In the future, this could be extended to provide automated release notes. PiperOrigin-RevId: 281112651
2019-11-15Automated rollback of changelist 280594395Bhasker Hariharan
PiperOrigin-RevId: 280763655
2019-11-15Handle in-flight TCP segments when moving to CLOSE.Mithun Iyer
As we move to CLOSE state from LAST-ACK or TIME-WAIT, ensure that we re-match all in-flight segments to any listening endpoint. Also fix LISTEN state handling of any ACK segments as per RFC793. Fixes #1153 PiperOrigin-RevId: 280703556
2019-11-15Do not set finalizer on p9.ClientFile.Jamie Liu
Aside from the performance hit, there is no guarantee that p9.ClientFile's finalizer runs before the associated p9.Client is closed. PiperOrigin-RevId: 280702509
2019-11-14Fix panic when logging raw packets via sniffer.Kevin Krakauer
Sniffer assumed that outgoing packets have transport headers, but users can write packets via SOCK_RAW with arbitrary transport headers that netstack doesn't know about. We now explicitly check for the presence of network and transport headers before assuming they exist. PiperOrigin-RevId: 280594395
2019-11-14Fix return codes for {get,set}sockopt for some nullptr cases.Ting-Yu Wang
Updates #1092 PiperOrigin-RevId: 280547239
2019-11-14Check 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. Avoids breaking php tests. PiperOrigin-RevId: 280533213
2019-11-14Allow all runtime tests for a language to be run via a single command.Kevin Krakauer
This was intended behavior per the README, but running tests without the --test flag caused an error. Users can now omit the --test flag to run every test for a runtime. PiperOrigin-RevId: 280522025
2019-11-14Avoid unnecessary slice allocation in usermem.BytesIO.blocksFromAddrRanges().Jamie Liu
PiperOrigin-RevId: 280507239
2019-11-14Use PacketBuffers for outgoing packets.Kevin Krakauer
PiperOrigin-RevId: 280455453
2019-11-13test/syscalls/proc: check an return code of waitidAndrei Vagin
PiperOrigin-RevId: 280295208
2019-11-13Fix flaky behaviour during S/R.Bhasker Hariharan
PiperOrigin-RevId: 280280156
2019-11-13Extract linux-specific test setup to separate fileJay Zhuang
PiperOrigin-RevId: 280264564
2019-11-12Use overlay MountSource when binding socket in overlay.Nicolas Lacasse
PiperOrigin-RevId: 280131840
2019-11-13Fix some build errors on arm64.Haibo Xu
Initialize the VDSO "os" and "arch" fields explicitly, or the VDSO load process would failed on arm64 platform. Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: Ic6768df88e43cd7c7956eb630511672ae11ac52f
2019-11-13Enable sentry/fs/host support on arm64.Haibo Xu
newfstatat() syscall is not supported on arm64, so we resort to use the fstatat() syscall. Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: Iea95550ea53bcf85c01f7b3b95da70ad0952177d
2019-11-13Enable runsc/boot support on arm64.Haibo Xu
This patch also include a minor change to replace syscall.Dup2 with syscall.Dup3 which was missed in a previous commit(ref a25a976). Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I00beb9cc492e44c762ebaa3750201c63c1f7c2f3
2019-11-12Add UDP SO_REUSEADDR/SO_REUSEPORT conversion tests.Ian Gudger
Add additional tests for UDP SO_REUSEADDR and SO_REUSEPORT interaction. If all existing all currently bound sockets as well as the current binding socket have SO_REUSEADDR, or if all existing all currently bound sockets as well as the current binding socket have SO_REUSEPORT, binding a currently bound address is allowed. This seems odd since it means that the SO_REUSEADDR/SO_REUSEPORT behavior can change with the binding of additional sockets. PiperOrigin-RevId: 280116163
2019-11-12seccomp: introduce the GreaterThan rule typeAndrei Vagin
PiperOrigin-RevId: 280075805
2019-11-12Do not handle TCP packets that include a non-unicast IP addressGhanan Gowripalan
This change drops TCP packets with a non-unicast IP address as the source or destination address as TCP is meant for communication between two endpoints. Test: Make sure that if the source or destination address contains a non-unicast address, no TCP packet is sent in response and the packet is dropped. PiperOrigin-RevId: 280073731
2019-11-12Discover on-link prefixes from Router Advertisements' Prefix Information optionsGhanan Gowripalan
This change allows the netstack to do NDP's Prefix Discovery as outlined by RFC 4861 section 6.3.4. If configured to do so, when a new on-link prefix is discovered, the routing table will be updated with a device route through the nic the RA arrived at. Likewise, when such a prefix gets invalidated, the device route will be removed. 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 Prefix Discovery will not be performed. See `stack.Options` and `stack.NDPConfigurations` for more details. This change reuses 1 option and introduces a new one that is required to take advantage of Prefix Discovery, all available under NDPConfigurations: - HandleRAs: Whether or not NDP RAs are processes - DiscoverOnLinkPrefixes: Whether or not Prefix Discovery is performed (new) Another note: for a NIC to process Prefix Information options (in 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 (and by extension the Prefix Information options) will be processed. Tests: Unittest to make sure that Prefix Discovery and updates to the routing table only occur if explicitly configured to do so. Unittest to make sure at max stack.MaxDiscoveredOnLinkPrefixes discovered on-link prefixes are remembered. PiperOrigin-RevId: 280049278
2019-11-12Add tests for SO_REUSEADDR and SO_REUSEPORT.Ian Gudger
* Basic tests for the SO_REUSEADDR and SO_REUSEPORT options. * SO_REUSEADDR functional tests for TCP and UDP. * SO_REUSEADDR and SO_REUSEPORT interaction tests for UDP. * Stubbed support for UDP getsockopt(SO_REUSEADDR). PiperOrigin-RevId: 280049265
2019-11-12kokoro: correct a path to outputs.zipAndrei Vagin
PiperOrigin-RevId: 280021914
2019-11-11Update ephemeral port reservation tests.Ian Gudger
The existing tests which are disabled on gVisor are failing because we default to SO_REUSEADDR being enabled for TCP sockets. Update the test comments. Also add new tests for enabled SO_REUSEADDR. PiperOrigin-RevId: 279862275
2019-11-11Merge pull request #918 from lubinszARM:pr_ring0gVisor bot
PiperOrigin-RevId: 279840214
2019-11-11Remove obsolete TODO. This is now fixed.Bhasker Hariharan
PiperOrigin-RevId: 279835100
2019-11-11Add more extended features.Brad Burlage
PiperOrigin-RevId: 279820435
2019-11-11Make `connect` on socket returned by `accept` correctly error out with EISCONNgVisor bot
PiperOrigin-RevId: 279814493
2019-11-08Merge pull request #1158 from andrew-d:andrew/rules-gogVisor bot
PiperOrigin-RevId: 279425005
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
2019-11-08kokoro: update images to install zipAndrei Vagin
PiperOrigin-RevId: 279406266
2019-11-08Update kokoro images to install junitparserAndrei Vagin
junitparser will be used to merge junit xml files. PiperOrigin-RevId: 279387305
2019-11-08Automated rollback of changelist 278417533Kevin Krakauer
PiperOrigin-RevId: 279365629
2019-11-07Bump gazelle to v0.19.1Andrew Dunham
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
2019-11-06Fix yet another data race.Bhasker Hariharan
Fixes #1140 PiperOrigin-RevId: 279020846
2019-11-06Fix data race in syscall_test_runner.goBhasker Hariharan
Fixes #1140 PiperOrigin-RevId: 279012793
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
2019-11-06Internal change.gVisor bot
PiperOrigin-RevId: 278979065
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
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