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2020-06-30Merge release-20200622.1-41-gdce2dfae0 (automated)gVisor bot
2020-06-30Add build target for the provisional style guide.Dean Deng
This includes the provisional style guide in the website and fixes the broken link from CONTRIBUTING.md. The style guide will be located under the "Community" category as it's related to contributing to the project. Also, add missing includes that were causing some presubmits to fail. PiperOrigin-RevId: 319061410
2020-06-29Merge release-20200622.1-40-g5b0d8ff69 (automated)gVisor bot
2020-06-29Refactor udp_socket_testZach Koopmans
Bring udp_socket_test into complianc by: - Eliminating IsRunningOnGvisor() invocations. - Wrapping sockets in RAII FileDescriptor objects. - Creating a Bind() method so that the first bind happens on port 0. PiperOrigin-RevId: 318909396
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
2020-06-26Add style guide.Ian Gudger
PiperOrigin-RevId: 318591900
2020-06-27Merge release-20200622.1-35-g85be13d9a (automated)gVisor bot
2020-06-26Add tests for eventfd/timerfd/inotify operations that should return ESPIPE.Dean Deng
PiperOrigin-RevId: 318585377
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
2020-06-26Packetimpact test for IPv6 unknown options actionZeling Feng
The Option Type identifiers are internally encoded such that their highest-order two bits specify the action that must be taken if the processing IPv6 node does not recognize the Option Type: 00 - skip over this option and continue processing the header. 01 - discard the packet. 10 - discard the packet and, regardless of whether or not the packet's Destination Address was a multicast address, send an ICMP Parameter Problem, Code 2, message to the packet's Source Address, pointing to the unrecognized Option Type. 11 - discard the packet and, only if the packet's Destination Address was not a multicast address, send an ICMP Parameter Problem, Code 2, message to the packet's Source Address, pointing to the unrecognized Option Type. PiperOrigin-RevId: 318566613
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
2020-06-26Support IPv6 extension headers in packetimpact tests.Zeling Feng
- IPv6 HopByHop Options Extension Header - IPv6 Destination Options Extension Header PiperOrigin-RevId: 318551425
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
2020-06-26Enable docker IPv6 in kokoroKevin Krakauer
We need docker IPv6 for ip6tables tests. Docker has spotty IPv6 support, so just enabling IPv6 in daemon.json breaks the Ruby image test (AFAICT it breaks anything that tries to use IPv6 to reach the internet). An ip6tables NAT rule is added to handle this. We could make these changes as part of scripts/, but these would overwrite global values and possibly break users' systems. PiperOrigin-RevId: 318508209
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
2020-06-25Merge release-20200622.1-22-g406946187 (automated)gVisor bot
2020-06-25Avoid an allocation in epollTamir Duberstein
PiperOrigin-RevId: 318346153
2020-06-25Test that the fuse device can be openedRidwan Sharif
2020-06-25Moved FUSE device under the fuse directoryRidwan Sharif
2020-06-25Add FUSE character deviceRidwan Sharif
This change adds a FUSE character device backed by devtmpfs. This device will be used to establish a connection between the FUSE server daemon and fusefs. The FileDescriptionImpl methods will be implemented as we flesh out fusefs some more. The tests assert that the device can be opened and used.
2020-06-25Merge release-20200608.0-125-g00ee5abaa (automated)gVisor bot
2020-06-25Drop unused markdown links.Adin Scannell
PiperOrigin-RevId: 318284693
2020-06-25Merge release-20200608.0-124-gb5e814445 (automated)gVisor bot
2020-06-24Fix procfs bugs in vfs2.Dean Deng
- Support writing on proc/[pid]/{uid,gid}map - Return EIO for writing to static files. Updates #2923. PiperOrigin-RevId: 318188503
2020-06-25Merge release-20200608.0-123-gac6f7b600 (automated)gVisor bot
2020-06-24Internal change.gVisor bot
PiperOrigin-RevId: 318180382
2020-06-24Merge release-20200608.0-122-g58880bf55 (automated)gVisor bot
2020-06-24Port /dev/net/tun device to VFS2.Nicolas Lacasse
Updates #2912 #1035 PiperOrigin-RevId: 318162565
2020-06-24Merge release-20200608.0-121-g10930b0f8 (automated)gVisor bot
2020-06-24Remove waiter.Entry.ContextTamir Duberstein
This field is redundant since state can be stored in the callback. PiperOrigin-RevId: 318134855
2020-06-24Merge release-20200608.0-120-gb070e218c (automated)gVisor bot
2020-06-24Add support for Stack level options.Bhasker Hariharan
Linux controls socket send/receive buffers using a few sysctl variables - net.core.rmem_default - net.core.rmem_max - net.core.wmem_max - net.core.wmem_default - net.ipv4.tcp_rmem - net.ipv4.tcp_wmem The first 4 control the default socket buffer sizes for all sockets raw/packet/tcp/udp and also the maximum permitted socket buffer that can be specified in setsockopt(SOL_SOCKET, SO_(RCV|SND)BUF,...). The last two control the TCP auto-tuning limits and override the default specified in rmem_default/wmem_default as well as the max limits. Netstack today only implements tcp_rmem/tcp_wmem and incorrectly uses it to limit the maximum size in setsockopt() as well as uses it for raw/udp sockets. This changelist introduces the other 4 and updates the udp/raw sockets to use the newly introduced variables. The values for min/max match the current tcp_rmem/wmem values and the default value buffers for UDP/RAW sockets is updated to match the linux value of 212KiB up from the really low current value of 32 KiB. Updates #3043 Fixes #3043 PiperOrigin-RevId: 318089805
2020-06-24Merge release-20200608.0-119-g364ac92ba (automated)gVisor bot
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