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2020-07-02Merge release-20200622.1-56-g3b26d2121 (automated)gVisor bot
2020-07-01Remove maxSendBufferSize from vfs2.Dean Deng
Complements cl/315991648. PiperOrigin-RevId: 319327853
2020-07-02Merge release-20200622.1-55-g65d998555 (automated)gVisor bot
2020-07-01Port vfs1 implementation of sync_file_range to vfs2.Dean Deng
Currently, we always perform a full-file sync which could be extremely expensive for some applications. Although vfs1 did not fully support sync_file_range, there were some optimizations that allowed us skip some unnecessary write-outs. Updates #2923, #1897. PiperOrigin-RevId: 319324213
2020-07-01Merge release-20200622.1-54-g31b27adf9 (automated)gVisor bot
2020-07-01TCP receive should block when in SYN-SENT state.Mithun Iyer
The application can choose to initiate a non-blocking connect and later block on a read, when the endpoint is still in SYN-SENT state. PiperOrigin-RevId: 319311016
2020-07-01Merge release-20200622.1-53-ge4b208760 (automated)gVisor bot
2020-07-01Merge release-20200622.1-52-g6a90c88b9 (automated)gVisor bot
2020-07-01Port fallocate to VFS2.Zach Koopmans
PiperOrigin-RevId: 319283715
2020-07-01Merge release-20200622.1-51-g68e1c870d (automated)gVisor bot
2020-07-01Merge release-20200622.1-50-g068716ddf (automated)gVisor bot
2020-07-01Merge release-20200622.1-49-gcda2979b6 (automated)gVisor bot
2020-07-01Complete async signal delivery support in vfs2.Dean Deng
- Support FIOASYNC, FIO{SET,GET}OWN, SIOC{G,S}PGRP (refactor getting/setting owner in the process). - Unset signal recipient when setting owner with pid == 0 and valid owner type. Updates #2923. PiperOrigin-RevId: 319231420
2020-07-01Merge release-20200622.1-48-gb8f165ab1 (automated)gVisor bot
2020-07-01Merge release-20200622.1-47-gc9446f053 (automated)gVisor bot
2020-06-30Fix two bugs in TCP sender.Bhasker Hariharan
a) When GSO is in use we should not cap the segment to maxPayloadSize in sender.maybeSendSegment as the GSO logic will cap the segment to the correct size. Without this the host GSO is not used as we end up breaking up large segments into small MSS sized segments before writing the packets to the host. b) The check to not split a segment due to it not fitting in the receiver window when there are pending segments is incorrect as segments in writeList can be really large as we just take the write call's buffer size and create a single large segment. So a write of say 128KB will just be 1 segment in the writeList. The linux code checks if 1 MSS sized segments fits in the receiver's window and if not then does not split the current segment. gVisor's check was incorrect that it was checking if the whole segment which could be >>> 1 MSS would fit in the receiver's window. This was causing us to prematurely stop sending and falling back to retransmit timer/probe from the other end to send data. This was seen when running HTTPD benchmarks where @ HEAD when sending large files the benchmark was taking forever to run. The tcp_splitseg_mss_test.go is being deleted as the test as written doesn't test what is intended correctly. This is because GSO is enabled by default and the reason the MSS+1 sized segment is sent is because GSO is in use. A proper test will require disabling GSO on linux and netstack which is going to take a bit of work in packetimpact to do it correctly. Separately a new test probably should be written that verifies that a segment > availableWindow is not split if the availableWindow is < 1 MSS. Fixes #3107 PiperOrigin-RevId: 319172089
2020-07-01Merge release-20200622.1-46-g43f5dd95a (automated)gVisor bot
2020-06-30Fix index calculation for /proc/[pid]/cmdline.Dean Deng
We were truncating buf using a index relative to the middle of the slice (i.e. where envv begins), but we need to calculate the index relative to the entire slice. Updates #2923. PiperOrigin-RevId: 319154950
2020-07-01Merge release-20200622.1-45-g20d571b0c (automated)gVisor bot
2020-06-30Allow O_DIRECT on vfs2 tmpfs files.Dean Deng
Updates #2923. PiperOrigin-RevId: 319153792
2020-07-01Merge release-20200622.1-44-gc4bdd0118 (automated)gVisor bot
2020-06-30Add missing newline in /sys/devices/systen/cpu/onineBhasker Hariharan
PiperOrigin-RevId: 319143410
2020-06-30Merge release-20200622.1-43-g44071cc7f (automated)gVisor bot
2020-06-30Merge release-20200622.1-42-g4784ed46e (automated)gVisor bot
2020-06-30Avoid multiple atomic loadsTamir Duberstein
...by calling (*tcp.endpoint).EndpointState only once when possible. Avoid wrapping (*sleep.Waker).Assert in a useless func while I'm here. PiperOrigin-RevId: 319074149
2020-06-30Merge release-20200622.1-41-gdce2dfae0 (automated)gVisor bot
2020-06-29Merge release-20200622.1-40-g5b0d8ff69 (automated)gVisor bot
2020-06-28Merge release-20200622.1-39-ge8f1a5c1f (automated)gVisor bot
2020-06-27Port GETOWN, SETOWN fcntls to vfs2.Dean Deng
Also make some fixes to vfs1's F_SETOWN. The fcntl test now entirely passes on vfs2. Fixes #2920. PiperOrigin-RevId: 318669529
2020-06-27Merge release-20200622.1-38-g02d552d07 (automated)gVisor bot
2020-06-27Support sticky bit in vfs2.Dean Deng
Updates #2923. PiperOrigin-RevId: 318648128
2020-06-27Merge release-20200622.1-37-g691c04278 (automated)gVisor bot
2020-06-27Add documentation for vfs2 inotify.Dean Deng
Updates #1479. PiperOrigin-RevId: 318631247
2020-06-27Merge release-20200622.1-36-gbab3c36ef (automated)gVisor bot
2020-06-27Merge release-20200622.1-35-g85be13d9a (automated)gVisor bot
2020-06-27Merge release-20200622.1-34-g66d166544 (automated)gVisor bot
2020-06-26IPv6 raw sockets. Needed for ip6tables.Kevin Krakauer
IPv6 raw sockets never include the IPv6 header. PiperOrigin-RevId: 318582989
2020-06-27Merge release-20200622.1-33-g8dbeac53c (automated)gVisor bot
2020-06-26Implement SO_NO_CHECK socket option.gVisor bot
SO_NO_CHECK is used to skip the UDP checksum generation on a TX socket (UDP checksum is optional on IPv4). Test: - TestNoChecksum - SoNoCheckOffByDefault (UdpSocketTest) - SoNoCheck (UdpSocketTest) Fixes #3055 PiperOrigin-RevId: 318575215
2020-06-26Merge release-20200622.1-32-gaed718397 (automated)gVisor bot
2020-06-26Merge release-20200622.1-31-g9cfc15497 (automated)gVisor bot
2020-06-26Require CAP_SYS_ADMIN in the root user namespace for TTY theftKevin Krakauer
PiperOrigin-RevId: 318563543
2020-06-26Merge release-20200622.1-30-ge6a90baef (automated)gVisor bot
2020-06-26Merge release-20200622.1-29-g54a31e219 (automated)gVisor bot
2020-06-26Support inotify IN_ONESHOT.Dean Deng
Also, while we're here, make sure that gofer inotify events are generated when files are created in remote revalidating mode. Updates #1479. PiperOrigin-RevId: 318536354
2020-06-26Merge release-20200622.1-28-gcfd049da8 (automated)gVisor bot
2020-06-26Merge pull request #2931 from ridwanmsharif:ridwanmsharif/fuse-char-devicegVisor bot
PiperOrigin-RevId: 318511615
2020-06-26Merge release-20200622.1-24-g47ac142dc (automated)gVisor bot
2020-06-26Merge release-20200622.1-23-g7fb6cc286 (automated)gVisor bot
2020-06-25conntrack refactor, no behavior changesKevin Krakauer
- Split connTrackForPacket into 2 functions instead of switching on flag - Replace hash with struct keys. - Remove prefixes where possible - Remove unused connStatus, timeout - Flatten ConnTrack struct a bit - some intermediate structs had no meaning outside of the context of their parent. - Protect conn.tcb with a mutex - Remove redundant error checking (e.g. when is pkt.NetworkHeader valid) - Clarify that HandlePacket and CreateConnFor are the expected entrypoints for ConnTrack PiperOrigin-RevId: 318407168