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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
2019-10-22Merge release-20190806.1-299-gfb69de6 (automated)gVisor bot
2019-10-22Auto-generate an IPv6 link-local address based on the NIC's MAC Address.Ghanan Gowripalan
This change adds support for optionally auto-generating an IPv6 link-local address based on the NIC's MAC Address on NIC enable. 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 a link-local address will not be auto-generated unless the stack is explicitly configured. See `stack.Options` for more details. Specifically, see `stack.Options.AutoGenIPv6LinkLocal`. Tests: Tests to make sure that the IPb6 link-local address is only auto-generated if the stack is specifically configured to do so. Also tests to make sure that an auto-generated address goes through the DAD process. PiperOrigin-RevId: 276059813
2019-10-22Merge release-20190806.1-298-g070a8c2 (automated)gVisor bot
2019-10-21Remove old TODO.Nicolas Lacasse
PiperOrigin-RevId: 275956240
2019-10-21Merge release-20190806.1-297-g0b569b7 (automated)gVisor bot
2019-10-21Add basic implementation of execveat syscall and associated tests.Dean Deng
Allow file descriptors of directories as well as AT_FDCWD. PiperOrigin-RevId: 275929668
2019-10-21Merge release-20190806.1-296-ga9358ce (automated)gVisor bot
2019-10-21Merge release-20190806.1-295-g12235d5 (automated)gVisor bot
2019-10-21AF_PACKET support for netstack (aka epsocket).Kevin Krakauer
Like (AF_INET, SOCK_RAW) sockets, AF_PACKET sockets require CAP_NET_RAW. With runsc, you'll need to pass `--net-raw=true` to enable them. Binding isn't supported yet. PiperOrigin-RevId: 275909366
2019-10-19Merge release-20190806.1-294-g652f7b1 (automated)gVisor bot
2019-10-19Add support for pipes in VFS2.Kevin Krakauer
PiperOrigin-RevId: 275650307
2019-10-18Merge release-20190806.1-292-g51538c9 (automated)gVisor bot
2019-10-18Store primary endpoints in a sliceTamir Duberstein
There's no need for a linked list here. PiperOrigin-RevId: 275565920
2019-10-18Merge release-20190806.1-291-g487d3b2 (automated)gVisor bot
2019-10-18Fix typo while initializing protocol for UDP endpoints.Mithun Iyer
Fixes #763 PiperOrigin-RevId: 275563222
2019-10-18Merge release-20190806.1-290-g49b596b (automated)gVisor bot
2019-10-18Cleanup host UDS supportMichael Pratt
This change fixes several issues with the fsgofer host UDS support. Notably, it adds support for SOCK_SEQPACKET and SOCK_DGRAM sockets [1]. It also fixes unsafe use of unet.Socket, which could cause a panic if Socket.FD is called when err != nil, and calls to Socket.FD with nothing to prevent the garbage collector from destroying and closing the socket. A set of tests is added to exercise host UDS access. This required extracting most of the syscall test runner into a library that can be used by custom tests. Updates #235 Updates #1003 [1] N.B. SOCK_DGRAM sockets are likely not particularly useful, as a server can only reply to a client that binds first. We don't allow bind, so these are unlikely to be used. PiperOrigin-RevId: 275558502
2019-10-18Merge release-20190806.1-288-g4e6f3a0 (automated)gVisor bot
2019-10-18Remove restrictions on the sending addressTamir Duberstein
It is quite legal to send from the ANY address (it is required for DHCP). I can't figure out why the broadcast address was included here, so removing that as well. PiperOrigin-RevId: 275541954
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