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2019-10-29Merge release-20190806.1-339-g2e00771 (automated)gVisor bot
2019-10-29Refactor logic for loadExecutable.Dean Deng
Separate the handling of filenames and *fs.File objects in a more explicit way for the sake of clarity. PiperOrigin-RevId: 277344203
2019-10-29Merge release-20190806.1-337-g7d80e85 (automated)gVisor bot
2019-10-29Allow waiting for Endpoint worker goroutines to finish.Ian Gudger
Updates #837 PiperOrigin-RevId: 277325162
2019-10-29Merge release-20190806.1-336-g8b04e2d (automated)gVisor bot
2019-10-29Merge pull request #1087 from xiaobo55x:fstat_NlinkgVisor bot
PiperOrigin-RevId: 277324979
2019-10-29Merge release-20190806.1-334-g41e2df1 (automated)gVisor bot
2019-10-29Support iterating an NDP options buffer.Ghanan Gowripalan
This change helps support iterating over an NDP options buffer so that implementations can handle all the NDP options present in an NDP packet. Note, this change does not yet actually handle these options, it just provides the tools to do so (in preparation for NDP's Prefix, Parameter, and a complete implementation of Neighbor Discovery). Tests: Unittests to make sure we can iterate over a valid NDP options buffer that may contain multiple options. Also tests to check an iterator before using it to see if the NDP options buffer is malformed. PiperOrigin-RevId: 277312487
2019-10-29Merge release-20190806.1-333-g29273b0 (automated)gVisor bot
2019-10-29Disallow execveat on interpreter scripts with fd opened with O_CLOEXEC.Dean Deng
When an interpreter script is opened with O_CLOEXEC and the resulting fd is passed into execveat, an ENOENT error should occur (the script would otherwise be inaccessible to the interpreter). This matches the actual behavior of Linux's execveat. PiperOrigin-RevId: 277306680
2019-10-29Merge release-20190806.1-331-g0864549 (automated)gVisor bot
2019-10-28Use the user supplied TCP MSS when creating a new active socketGhanan Gowripalan
This change supports using a user supplied TCP MSS for new active TCP connections. Note, the user supplied MSS must be less than or equal to the maximum possible MSS for a TCP connection's route. If it is greater than the maximum possible MSS, the maximum possible MSS will be used as the connection's MSS instead. This change does not use this user supplied MSS for connections accepted from listening sockets - that will come in a later change. Test: Test that outgoing TCP SYN segments contain a TCP MSS option with the user supplied MSS if it is not greater than the maximum possible MSS for the route. PiperOrigin-RevId: 277185125
2019-10-28Merge release-20190806.1-330-g198f1cd (automated)gVisor bot
2019-10-28Update commentMichael Pratt
FDTable.GetFile doesn't exist. PiperOrigin-RevId: 277089842
2019-10-28Cast the Stat_t.Nlink to uint64 on arm64.Haibo Xu
Since the syscall.Stat_t.Nlink is defined as different types on amd64 and arm64(uint64 and uint32 respectively), we need to cast them to a unified uint64 type in gVisor code. Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I7542b99b195c708f3fc49b1cbe6adebdd2f6e96b
2019-10-26Merge release-20190806.1-329-g1c480ab (automated)gVisor bot
2019-10-25Aggregate arguments for loading executables into a single struct.Dean Deng
This change simplifies the function signatures of functions related to loading executables, such as LoadTaskImage, Load, loadBinary. PiperOrigin-RevId: 276821187
2019-10-25Merge release-20190806.1-328-g5a42105 (automated)gVisor bot
2019-10-25Validate the checksum for incoming ICMPv6 packetsGhanan Gowripalan
This change validates the ICMPv6 checksum field before further processing an ICMPv6 packet. Tests: Unittests to make sure that only ICMPv6 packets with a valid checksum are accepted/processed. Existing tests using checker.ICMPv6 now also check the ICMPv6 checksum field. PiperOrigin-RevId: 276779148
2019-10-25Merge release-20190806.1-327-g8f029b3 (automated)gVisor bot
2019-10-25Convert DelayOption to the newer/faster SockOpt int type.Ian Gudger
DelayOption is set on all new endpoints in gVisor. PiperOrigin-RevId: 276746791
2019-10-25Merge release-20190806.1-325-gfd59891 (automated)gVisor bot
2019-10-25platform/ptrace: use tgkill instead of killAndrei Vagin
The syscall filters don't allow kill, just tgkill. PiperOrigin-RevId: 276718421
2019-10-25Merge release-20190806.1-324-g9a72674 (automated)gVisor bot
2019-10-25Merge pull request #1070 from lubinszARM:pr_abigVisor bot
PiperOrigin-RevId: 276609608
2019-10-24Merge release-20190806.1-322-g27e896f (automated)gVisor bot
2019-10-24Add a type to represent the NDP Prefix Information option.Ghanan Gowripalan
This change is in preparation for NDP Prefix Discovery and SLAAC where the stack will need to handle NDP Prefix Information options. Tests: Test that given an NDP Prefix Information option buffer, correct values are returned by the field getters. PiperOrigin-RevId: 276594592
2019-10-24Merge release-20190806.1-320-ge50a1f5 (automated)gVisor bot
2019-10-24Remove the amss field from tcpip.tcp.handshake as it was unusedGhanan Gowripalan
The amss field in the tcpip.tcp.handshake was not used anywhere. Removed it to not cause confusion with the amss field in the tcpip.tcp.endpoint struct, which was documented to be used (and is actually being used) for the same purpose. PiperOrigin-RevId: 276577088
2019-10-24Merge release-20190806.1-319-gf034790 (automated)gVisor bot
2019-10-24Use interface-specific NDP configurations instead of the stack-wide default.Ghanan Gowripalan
This change makes it so that NDP work is done using the per-interface NDP configurations instead of the stack-wide default NDP configurations to correctly implement RFC 4861 section 6.3.2 (note here, a host is a single NIC operating as a host device), and RFC 4862 section 5.1. Test: Test that we can set NDP configurations on a per-interface basis without affecting the configurations of other interfaces or the stack-wide default. Also make sure that after the configurations are updated, the updated configurations are used for NDP processes (e.g. Duplicate Address Detection). PiperOrigin-RevId: 276525661
2019-10-24slight changes to pkg/abiBin Lu
In glibc, some structures are defined differently on different platforms. Such as: C.struct_stat Signed-off-by: Bin Lu <bin.lu@arm.com>
2019-10-24Merge release-20190806.1-318-gd9fd536 (automated)gVisor bot
2019-10-24Handle AT_SYMLINK_NOFOLLOW flag for execveat.Dean Deng
PiperOrigin-RevId: 276441249
2019-10-23Handle AT_EMPTY_PATH flag in execveat.Dean Deng
PiperOrigin-RevId: 276419967
2019-10-23Merge release-20190806.1-315-g6d4d956 (automated)gVisor bot
2019-10-23Merge pull request #641 from tanjianfeng:mastergVisor bot
PiperOrigin-RevId: 276380008
2019-10-23Merge release-20190806.1-309-gfbe6b50 (automated)gVisor bot
2019-10-23Keep minimal available fd to accelerate fd allocationDarcySail
Use fd.next to store the iteration start position, which can be used to accelerate allocating new FDs. And adding the corresponding gtest benchmark to measure performance. @tanjianfeng COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/758 from DarcySail:master 96685ec7886dfe1a64988406831d3bc002b438cc PiperOrigin-RevId: 276351250
2019-10-23Merge release-20190806.1-308-gde3dbf8 (automated)gVisor bot
2019-10-23Inform netstack integrator when Duplicate Address Detection completesGhanan Gowripalan
This change introduces a new interface, stack.NDPDispatcher. It can be implemented by the netstack integrator to receive NDP related events. As of this change, only DAD related events are supported. Tests: Existing tests were modified to use the NDPDispatcher's DAD events for DAD tests where it needed to wait for DAD completing (failing and resolving). PiperOrigin-RevId: 276338733
2019-10-22Merge release-20190806.1-304-gebe8001 (automated)gVisor bot
2019-10-22Update const names to be Go style.Ian Lewis
PiperOrigin-RevId: 276165962
2019-10-22Merge release-20190806.1-303-ge63ff6d (automated)gVisor bot
2019-10-22platform/ptrace: exit without panic if a stub process has been killed by SIGKILLAndrei Vagin
SIGKILL can be sent only by an user or OOM-killer. In both cases, we don't need to panic. PiperOrigin-RevId: 276150120
2019-10-22Merge release-20190806.1-302-g515e055 (automated)gVisor bot
2019-10-22Add a type to represent the NDP Router Advertisement message.Ghanan Gowripalan
This change is in preparation for NDP Router Discovery where the stack will need to handle NDP Router Advertisments. Tests: Test that given an NDP Router Advertisement buffer (body of an ICMPv6 packet, correct values are returned by the field getters). PiperOrigin-RevId: 276146817
2019-10-22Respect new PrimaryEndpointBehavior when addresses gets promoted to permanentGhanan Gowripalan
This change makes sure that when an address which is already known by a NIC and has kind = permanentExpired gets promoted to permanent, the new PrimaryEndpointBehavior is respected. PiperOrigin-RevId: 276136317
2019-10-22Merge release-20190806.1-300-g8720bd6 (automated)gVisor bot
2019-10-22netstack/tcp: software segmentation offloadAndrei Vagin
Right now, we send each tcp packet separately, we call one system call per-packet. This patch allows to generate multiple tcp packets and send them by sendmmsg. The arguable part of this CL is a way how to handle multiple headers. This CL adds the next field to the Prepandable buffer. Nginx test results: Server Software: nginx/1.15.9 Server Hostname: 10.138.0.2 Server Port: 8080 Document Path: /10m.txt Document Length: 10485760 bytes w/o gso: Concurrency Level: 5 Time taken for tests: 5.491 seconds Complete requests: 100 Failed requests: 0 Total transferred: 1048600200 bytes HTML transferred: 1048576000 bytes Requests per second: 18.21 [#/sec] (mean) Time per request: 274.525 [ms] (mean) Time per request: 54.905 [ms] (mean, across all concurrent requests) Transfer rate: 186508.03 [Kbytes/sec] received sw-gso: Concurrency Level: 5 Time taken for tests: 3.852 seconds Complete requests: 100 Failed requests: 0 Total transferred: 1048600200 bytes HTML transferred: 1048576000 bytes Requests per second: 25.96 [#/sec] (mean) Time per request: 192.576 [ms] (mean) Time per request: 38.515 [ms] (mean, across all concurrent requests) Transfer rate: 265874.92 [Kbytes/sec] received w/o gso: $ ./tcp_benchmark --client --duration 15 --ideal [SUM] 0.0-15.1 sec 2.20 GBytes 1.25 Gbits/sec software gso: $ tcp_benchmark --client --duration 15 --ideal --gso $((1<<16)) --swgso [SUM] 0.0-15.1 sec 3.99 GBytes 2.26 Gbits/sec PiperOrigin-RevId: 276112677
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