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2020-07-23Merge release-20200622.1-192-g4fbd0728a (automated)gVisor bot
2020-07-23[vfs2][gofer] Fix update attributes race condition.Ayush Ranjan
We were getting the file attributes before locking the metadataMu which was causing stale updates to the file attributes. Fixes OpenTest_AppendConcurrentWrite. Updates #2923 PiperOrigin-RevId: 322804438
2020-07-23Merge release-20200622.1-191-g36257e6b7 (automated)gVisor bot
2020-07-23Merge release-20200622.1-189-g14839e027 (automated)gVisor bot
2020-07-23Merge release-20200622.1-188-gc9399797d (automated)gVisor bot
2020-07-22iptables: don't NAT existing connectionsKevin Krakauer
Fixes a NAT bug that manifested as: - A SYN was sent from gVisor to another host, unaffected by iptables. - The corresponding SYN/ACK was NATted by a PREROUTING REDIRECT rule despite being part of the existing connection. - The socket that sent the SYN never received the SYN/ACK and thus a connection could not be established. We handle this (as Linux does) by tracking all connections, inserting a no-op conntrack rule for new connections with no rules of their own. Needed for istio support (#170).
2020-07-22Merge release-20200622.1-187-gbd98f8201 (automated)gVisor bot
2020-07-22iptables: replace maps with arraysKevin Krakauer
For iptables users, Check() is a hot path called for every packet one or more times. Let's avoid a bunch of map lookups. PiperOrigin-RevId: 322678699
2020-07-22Merge release-20200622.1-186-g9654bf04a (automated)gVisor bot
2020-07-22[vfs2][tmpfs] Implement O_APPENDAyush Ranjan
Updates #2923 PiperOrigin-RevId: 322671489
2020-07-22Merge release-20200622.1-185-g39525d64c (automated)gVisor bot
2020-07-22Add O_APPEND support in vfs2 gofer.Ayush Ranjan
Helps in fixing open syscall tests: AppendConcurrentWrite and AppendOnly. We also now update the file size for seekable special files (regular files) which we were not doing earlier. Updates #2923 PiperOrigin-RevId: 322670843
2020-07-22Merge release-20200622.1-184-g71bf90c55 (automated)gVisor bot
2020-07-22Support for receiving outbound packets in AF_PACKET.Bhasker Hariharan
Updates #173 PiperOrigin-RevId: 322665518
2020-07-22Merge release-20200622.1-183-g13c0cca50 (automated)gVisor bot
2020-07-21Merge release-20200622.1-182-ge1a04f84e (automated)gVisor bot
2020-07-20Add standard entrypoints for test targets.Adin Scannell
PiperOrigin-RevId: 322265513
2020-07-18Merge release-20200622.1-181-gfeb1d3d5a (automated)gVisor bot
2020-07-18Merge release-20200622.1-180-g5593320be (automated)gVisor bot
2020-07-18Merge release-20200622.1-179-g40acd22bc (automated)gVisor bot
2020-07-17Merge release-20200622.1-178-ge3c2bd51a (automated)gVisor bot
2020-07-17Merge release-20200622.1-177-g03c30ec63 (automated)gVisor bot
2020-07-17Merge release-20200622.1-176-g40826b055 (automated)gVisor bot
2020-07-17Merge release-20200622.1-175-gc0ee95198 (automated)gVisor bot
2020-07-17Merge release-20200622.1-174-g7e226c807 (automated)gVisor bot
2020-07-17Merge release-20200622.1-173-gdcf6ddc27 (automated)gVisor bot
2020-07-16Add support to return protocol in recvmsg for AF_PACKET.Bhasker Hariharan
Updates #173 PiperOrigin-RevId: 321690756
2020-07-16Merge release-20200622.1-172-ge6894cb99 (automated)gVisor bot
2020-07-16Merge release-20200622.1-171-gc66991ad7 (automated)gVisor bot
2020-07-16Add ethernet broadcast address constantGhanan Gowripalan
PiperOrigin-RevId: 321620517
2020-07-16Merge release-20200622.1-170-g0a745cb34 (automated)gVisor bot
2020-07-15Merge pull request #3236 from craig08:fuse-kernfs-inode-stat-add-ctxgVisor bot
PiperOrigin-RevId: 321496734
2020-07-16Merge release-20200622.1-168-g5c8c0d65b (automated)gVisor bot
2020-07-15Merge release-20200622.1-167-ge92f38ff0 (automated)gVisor bot
2020-07-15iptables: remove check for NetworkHeaderKevin Krakauer
This is no longer necessary, as we always set NetworkHeader before calling iptables.Check. PiperOrigin-RevId: 321461978
2020-07-15Merge release-20200622.1-166-gbdbab2702 (automated)gVisor bot
2020-07-15Merge release-20200622.1-164-gdb653bb34 (automated)gVisor bot
2020-07-15Merge release-20200622.1-163-g857d03f25 (automated)gVisor bot
2020-07-15fdbased: Vectorized write for packet; relax writev syscall filter.Ting-Yu Wang
Now it calls pkt.Data.ToView() when writing the packet. This may require copying when the packet is large, which puts the worse case in an even worse situation. This sent out in a separate preparation change as it requires syscall filter changes. This change will be followed by the change for the adoption of the new PacketHeader API. PiperOrigin-RevId: 321447003
2020-07-15Add support for SO_ERROR to packet sockets.Bhasker Hariharan
Packet sockets also seem to allow double binding and do not return an error on linux. This was tested by running the syscall test in a linux namespace as root and the current test DoubleBind fails@HEAD. Passes after this change. Updates #173 PiperOrigin-RevId: 321445137
2020-07-15Merge release-20200622.1-162-gfef90c61c (automated)gVisor bot
2020-07-15Fix minor bugs in a couple of interface IOCTLs.Bhasker Hariharan
gVisor incorrectly returns the wrong ARP type for SIOGIFHWADDR. This breaks tcpdump as it tries to interpret the packets incorrectly. Similarly, SIOCETHTOOL is used by tcpdump to query interface properties which fails with an EINVAL since we don't implement it. For now change it to return EOPNOTSUPP to indicate that we don't support the query rather than return EINVAL. NOTE: ARPHRD types for link endpoints are distinct from NIC capabilities and NIC flags. In Linux all 3 exist eg. ARPHRD types are stored in dev->type field while NIC capabilities are more like the device features which can be queried using SIOCETHTOOL but not modified and NIC Flags are fields that can be modified from user space. eg. NIC status (UP/DOWN/MULTICAST/BROADCAST) etc. Updates #2746 PiperOrigin-RevId: 321436525
2020-07-15Merge release-20200622.1-160-g8939fae0a (automated)gVisor bot
2020-07-15Merge pull request #3165 from ridwanmsharif:ridwanmsharif/fuse-off-by-defaultgVisor bot
PiperOrigin-RevId: 321411758
2020-07-15Merge release-20200622.1-158-gfc48ace73 (automated)gVisor bot
2020-07-15hostinet: fix fd leak in fdnotifier for VFS2Tiwei Bie
When we failed to create the new socket after adding the fd to fdnotifier, we should remove the fd from fdnotifier, because we are going to close the fd directly. Fixes: #3241 Signed-off-by: Tiwei Bie <tiwei.btw@antgroup.com>
2020-07-15Merge release-20200622.1-156-g1b9965e06 (automated)gVisor bot
2020-07-14Update special file option name in comment.Dean Deng
PiperOrigin-RevId: 321269281
2020-07-14Include context in kernfs.Inode.Stat methodCraig Chi
To implement stat(2) in FUSE, we have to embed credentials and pid in request header. The information should be extracted from the context passed to VFS layer. Therefore `Stat()` signature in `kernfs.Inode` interface should include context as first argument. Some other fs implementations need to be modified as well, such as devpts, host, pipefs, and proc. Fixes #3235
2020-07-13Merge pull request #3200 from lubinszARM:pr_kvm_ut_1gVisor bot
PiperOrigin-RevId: 321060717
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