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2020-04-03Ensure EOF is handled propertly during splice.Adin Scannell
PiperOrigin-RevId: 304684417
2020-04-03Deflake //third_party/gvisor/test/perf:getdents_benchmark_runsc_ptraceAndrei Vagin
* Increase a buffer size for getdents64 * Increase a number of shards PiperOrigin-RevId: 304670004
2020-04-03Add missing newlineTamir Duberstein
PiperOrigin-RevId: 304659346
2020-04-03Internal change.gVisor bot
PiperOrigin-RevId: 304641990
2020-04-02Avoid sending a partial dirent when the Rreaddir response exceeds message limit.Uros Prestor
PiperOrigin-RevId: 304542967
2020-04-02Add NAME_MAX checks and update file timesFabricio Voznika
NAME_MAX should be enforced per filesystem implementation because other file systems may not have the same restriction. Gofer filesystem now keeps a reference to the kernel clock to avoid lookup in the Context on file access to update atime. Update access, modification, and status change times in tmpfs. Updates #1197, #1198. PiperOrigin-RevId: 304527148
2020-04-02Drop NDP messages with fragment extension headerGhanan Gowripalan
As per RFC 6980 section 5, nodes MUST silently ignore NDP messages if the packet carrying them include an IPv6 Fragmentation Header. Test: ipv6_test.TestNDPValidation PiperOrigin-RevId: 304519379
2020-04-02Fix typo in TODO comments.Dean Deng
PiperOrigin-RevId: 304508083
2020-04-02Add equivalents to FMODE_PREAD/PWRITE to VFS2.Jamie Liu
This is mostly required for PipeTest_OffsetCalls. The options are DenyPRead/PWrite rather than AllowPRead/PWrite since, in Linux terms, fs/open.c:do_dentry_open sets FMODE_PREAD|FMODE_PWRITE unconditionally (although it allows filesystem implementations of open to unset these flags), so they're set for most FDs; it's usually FDs created outside of open(2) that don't get them, e.g.: - Syscall-created pipes (fs/pipe.c:create_pipe_files => fs/file_table.c:alloc_file_pseudo) - Epoll instances (fs/eventpoll.c:do_epoll_create => fs/anon_inodes.c:anon_inode_getfile => alloc_file_pseudo) - Sockets (net/socket.c:sock_alloc_file => alloc_file_pseudo) This CL adds the flags to epoll instances; a subsequent CL reworks the VFS2 implementation of pipe FDs to be filesystem-independent and adds the flags there, and sockets aren't implemented yet. Updates #1035 PiperOrigin-RevId: 304506434
2020-04-02Increment NDP message RX stats before validationGhanan Gowripalan
Tests: - ipv6_test.TestHopLimitValidation - ipv6_test.TestRouterAdvertValidation PiperOrigin-RevId: 304495723
2020-04-02Rename files in //pkg/sync to better reflect what they contain.Jamie Liu
PiperOrigin-RevId: 304447031
2020-04-02Fix typo in benchmarks.shZach Koopmans
PiperOrigin-RevId: 304440599
2020-04-02Fix flaky TCPLinger2TimeoutAfterClose test.Bhasker Hariharan
The test is flaky in cooperative S/R mode because TCP timers are not restored across a S/R. This can cause the TCPLinger2 timer to not fire. This change disables S/R before setting the TCP_LINGER2 timeout. PiperOrigin-RevId: 304430536
2020-04-01Add "/snap/bin" to PATH.Zach Koopmans
"gcloud" may be installed as a snap, under "/snap/bin". Make sure this is in our PATH so that we can use gcloud. PiperOrigin-RevId: 304297180
2020-04-01go-marshal: Allow array lens to be consts and simple expressions.Rahat Mahmood
Previously, go-marshal only allowed literals for array lengths. However, it's very common for ABI structs to have a fix-sized array whose length is defined by a constant; for example PATH_MAX. Having to convert all such arrays to have literal lengths is too awkward. PiperOrigin-RevId: 304289345
2020-04-01Deflake tcpip/stack:stack_x_testGhanan Gowripalan
Timeouts were increased to deflake pkg/tcpip/stack:stack_x_test tests that depend on timers. Some timeouts used previously were intended for tests that do not depend on timers, so this change updates those timeouts to give more time for a timer-based event to occur. This change also de-parallelizes non-subtests to reduce the number of active timers. Test: bazel test //pkg/tcpip/stack:stack_x_test --runs_per_test=500 PiperOrigin-RevId: 304287622
2020-04-01Pass configurable FilesystemType to tmpfs.Nicolas Lacasse
PiperOrigin-RevId: 304234086
2020-04-01Add context.Context argument to XxxWithErrno functionsEyal Soha
This allows control over the gRPC timeouts as needed. PiperOrigin-RevId: 304225713
2020-04-01Automated rollback of changelist 303799678Adin Scannell
PiperOrigin-RevId: 304221302
2020-04-01Fix 386 build tagsMichael Pratt
The build tag for 32-bit x86 is 386, not i386. Updates #2298 PiperOrigin-RevId: 304206373
2020-04-01Add FileDescription interface for socket files.Dean Deng
Refactor the existing socket interface to share methods between VFS1 and VFS2. The method signatures do not contain anything filesystem-related, so they don't need to be re-defined for VFS2. Updates #1476, #1478, #1484, #1485. PiperOrigin-RevId: 304184545
2020-04-01go-marshal: Improve collision detection of import statments.Rahat Mahmood
Previously, the import statement collision detection mechanism aborted go-marshal whenever it detected two imports in any package that has the same local name. Consider this trivial package, defined by the the following two source files: file1.go: package example import ( path/a/to/foo ) ... file2.go: package example import ( another/package/with/final/component/foo ) ... Go-marshal previously couldn't handle generating code for the the above package, even if none of the types marked for marshalling used either of the imported foo packages. This turns out to be too restrictive as we run into this a lot in practice. Examples include "encoding/binary" vs "gvisor/pkg/binary/binary", and "sync" vs "gvisor/pkg/sync/sync". This change allows go-marshal to proceed with marshalling, and only abort if the code generated by go-marshal references any such ambiguous import names. PiperOrigin-RevId: 304131190
2020-03-31Implement automated marshalling for slices of Marshallable types.Rahat Mahmood
PiperOrigin-RevId: 304119255
2020-03-31Test receiving multicast packets over UDPEyal Soha
PiperOrigin-RevId: 304098611
2020-03-31Add socket filesystem and global disconnected socket mount for VFS2.Dean Deng
A socket mount where anonymous sockets will reside is added to the VirtualFilesystem. Socketfs is built on top of kernfs. Updates #1476, #1478, #1484, #1485. PiperOrigin-RevId: 304095251
2020-03-31Debug script issues on Kokoro.Zach Koopmans
PiperOrigin-RevId: 304068950
2020-03-31Include original copyUp error in panic if cleanupUpper fails.Nicolas Lacasse
When copyUp fails, we attempt to clean up the upper filesystem by removing any files that have already been copied-up. If the cleanup fails, we panic because the "overlay filesystem is in an inconsistent state". This CL adds the original copy-up error to the panic information, to hopefully make it easier to track down how the overlay filesystem got into the inconsistent state. PiperOrigin-RevId: 304053370
2020-03-31Fix /proc/self/mounts and /proc/self/mountinfo in VFS2.Nicolas Lacasse
Some extra fields were added to the Mount type to expose necessary data to the proc filesystem. PiperOrigin-RevId: 304053361
2020-03-31Allow passing root file type to tmpfs.Nicolas Lacasse
PiperOrigin-RevId: 304053357
2020-03-30Add AMD Rome CPUID flag.Michael Pratt
This flag is set on Rome CPUs, but it is not documented. PiperOrigin-RevId: 303825532
2020-03-30BigQuery schema for benchmark-tools dashboard.Zach Koopmans
PiperOrigin-RevId: 303805784
2020-03-30kvm: handle exit reasons even under EINTR.Adin Scannell
In the case of other signals (preemption), inject a normal bounce and defer the signal until the vCPU has been returned from guest mode. PiperOrigin-RevId: 303799678
2020-03-30Internal change.Zach Koopmans
PiperOrigin-RevId: 303773475
2020-03-30Merge pull request #2265 from amscanne:arm64_nogogVisor bot
PiperOrigin-RevId: 303753027
2020-03-27Add vfs.PathnameReachable().Jamie Liu
/proc/[pid]/mount* omit mounts whose mount point is outside the chroot, which is checked (indirectly) via __d_path(). PiperOrigin-RevId: 303434226
2020-03-27Add FilesystemType.Name method, and FilesystemType field to Filesystem struct.Nicolas Lacasse
Both have analogues in Linux: * struct file_system_type has a char *name field. * struct super_block keeps a pointer to the file_system_type. These fields are necessary to support the `filesystem type` field in /proc/[pid]/mountinfo. PiperOrigin-RevId: 303434063
2020-03-27Support Hop By Hop and Destination Options ext hdrGhanan Gowripalan
Enables handling the Hop by Hop and Destination Options extension headers, but options are not yet supported. All options will be treated as unknown and their respective action will be followed. Note, the stack does not yet support sending ICMPv6 error messages in response to options that cannot be handled/parsed. That will come in a later change (Issue #2211). Tests: - header_test.TestIPv6UnknownExtHdrOption - header_test.TestIPv6OptionsExtHdrIterErr - header_test.TestIPv6OptionsExtHdrIter - ipv6_test.TestReceiveIPv6ExtHdrs PiperOrigin-RevId: 303433085
2020-03-26Add BoundEndpointAt filesystem operation.Dean Deng
BoundEndpointAt() is needed to support Unix sockets bound at a file path, corresponding to BoundEndpoint() in VFS1. Updates #1476. PiperOrigin-RevId: 303258251
2020-03-26Use host-defined file owner and mode, when possible, for imported fds.Dean Deng
Using the host-defined file owner matches VFS1. It is more correct to use the host-defined mode, since the cached value may become out of date. However, kernfs.Inode.Mode() does not return an error--other filesystems on kernfs are in-memory so retrieving mode should not fail. Therefore, if the host syscall fails, we rely on a cached value instead. Updates #1672. PiperOrigin-RevId: 303220864
2020-03-26Use panic instead of log.FatalfGhanan Gowripalan
PiperOrigin-RevId: 303212189
2020-03-26Merge pull request #2130 from nybidari:iptablesgVisor bot
PiperOrigin-RevId: 303208407
2020-03-26Handle IPv6 Fragment & Routing extension headersGhanan Gowripalan
Enables the reassembly of fragmented IPv6 packets and handling of the Routing extension header with a Segments Left value of 0. Atomic fragments are handled as described in RFC 6946 to not interfere with "normal" fragment traffic. No specific routing header type is supported. Note, the stack does not yet support sending ICMPv6 error messages in response to IPv6 packets that cannot be handled/parsed. That will come in a later change (Issue #2211). Test: - header_test.TestIPv6RoutingExtHdr - header_test.TestIPv6FragmentExtHdr - header_test.TestIPv6ExtHdrIterErr - header_test.TestIPv6ExtHdrIter - ipv6_test.TestReceiveIPv6ExtHdrs - ipv6_test.TestReceiveIPv6Fragments RELNOTES: n/a PiperOrigin-RevId: 303189584
2020-03-26Add unique ID to Mount type.Nicolas Lacasse
Analagous to Linux's mount.mnt_id. This ID is displayed in /proc/[pid]/mountinfo. PiperOrigin-RevId: 303185564
2020-03-26Add nogo exemption for machine_arm64_unsafe.goAdin Scannell
2020-03-26Support owner matching for iptables.Nayana Bidari
This feature will match UID and GID of the packet creator, for locally generated packets. This match is only valid in the OUTPUT and POSTROUTING chains. Forwarded packets do not have any socket associated with them. Packets from kernel threads do have a socket, but usually no owner.
2020-03-26Merge pull request #2254 from kevinGC:container-timeoutgVisor bot
PiperOrigin-RevId: 303159175
2020-03-26Merge pull request #2177 from xiaobo55x:sysret_testgVisor bot
PiperOrigin-RevId: 303158421
2020-03-26Add IPv4 to bind_to_device distribution testJay Zhuang
PiperOrigin-RevId: 303156734
2020-03-26Check error in DropTCP*Port tests and fix comment.Kevin Krakauer
PiperOrigin-RevId: 303147253
2020-03-26Clean up transport_demuxer.go and testJay Zhuang
- Change receiver of endpoint lookup functions - Remove unused struct fields and functions in test - s/%v/%s/ for errors - Capitalize NIC https://github.com/golang/go/wiki/CodeReviewComments#initialisms PiperOrigin-RevId: 303119580
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