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2020-02-10Merge release-20200127.0-109-gc9a18b1 (automated)gVisor bot
2020-02-10Document MinimumTotalMemoryBytes.Adin Scannell
PiperOrigin-RevId: 294273559
2020-02-10Redirect FIXME to gvisor.devFabricio Voznika
PiperOrigin-RevId: 294272755
2020-02-10Merge release-20200127.0-107-g20840bf (automated)gVisor bot
2020-02-10Move x86 state definition to its own file.Brad Burlage
PiperOrigin-RevId: 294271541
2020-02-10Update visibility.Adin Scannell
PiperOrigin-RevId: 294265019
2020-02-10Merge release-20200127.0-104-ga03b40c (automated)gVisor bot
2020-02-10Merge pull request #1453 from xiaobo55x:cpuidgVisor bot
PiperOrigin-RevId: 294257911
2020-02-10Merge release-20200127.0-102-g223931d (automated)gVisor bot
2020-02-10Enable pkg/cpuid support on arm64.Haibo Xu
Fixes #1255 Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I8614e6f3ee321c2989567e4e712aa8f28cc9db14
2020-02-07Merge release-20200127.0-99-g17b9f5e (automated)gVisor bot
2020-02-07Support listxattr and removexattr syscalls.Dean Deng
Note that these are only implemented for tmpfs, and other impls will still return EOPNOTSUPP. PiperOrigin-RevId: 293899385
2020-02-07Merge release-20200127.0-98-ge1587a2 (automated)gVisor bot
2020-02-07Log level, optname, optval and optlen in getsockopt/setsockopt in strace.Ian Gudger
Log 8, 16, and 32 int optvals and dump the memory of other sizes. Updates #1782 PiperOrigin-RevId: 293889388
2020-02-07Merge release-20200127.0-96-gca30dfa (automated)gVisor bot
2020-02-06Send DAD event when DAD resolves immediatelyGhanan Gowripalan
Previously, a DAD event would not be sent if DAD was disabled. This allows integrators to do some work when an IPv6 address is bound to a NIC without special logic that checks if DAD is enabled. Without this change, integrators would need to check if a NIC has DAD enabled when an address is auto-generated. If DAD is enabled, it would need to delay the work until the DAD completion event; otherwise, it would need to do the work in the address auto-generated event handler. Test: stack_test.TestDADDisabled PiperOrigin-RevId: 293732914
2020-02-07Merge release-20200127.0-94-g3700221 (automated)gVisor bot
2020-02-06Auto-generate link-local address as a SLAAC addressGhanan Gowripalan
Auto-generated link-local addresses should have the same lifecycle hooks as global SLAAC addresses. The Stack's NDP dispatcher should be notified when link-local addresses are auto-generated and invalidated. They should also be removed when a NIC is disabled (which will be supported in a later change). Tests: - stack_test.TestNICAutoGenAddrWithOpaque - stack_test.TestNICAutoGenAddr PiperOrigin-RevId: 293706760
2020-02-07Merge release-20200127.0-92-g940d255 (automated)gVisor bot
2020-02-06Perform DAD on IPv6 addresses when enabling a NICGhanan Gowripalan
Addresses may be added before a NIC is enabled. Make sure DAD is performed on the permanent IPv6 addresses when they get enabled. Test: - stack_test.TestDoDADWhenNICEnabled - stack.TestDisabledRxStatsWhenNICDisabled PiperOrigin-RevId: 293697429
2020-02-06Merge release-20200127.0-90-g736775e (automated)gVisor bot
2020-02-06Make gonet consistent both internally and with the net package.Ian Gudger
The types gonet.Conn and gonet.PacketConn were confusingly named as both implemented net.Conn. Further, gonet.Conn was perhaps unexpectedly TCP-specific (net.Conn is not). This change renames them to gonet.TCPConn and gonet.UDPConn. Renames gonet.NewListener to gonet.ListenTCP and adds a new gonet.NewTCPListner function to be consistent with both the gonet.DialXxx and gonet.NewXxxConn functions as well as net.ListenTCP. Updates #1632 PiperOrigin-RevId: 293671303
2020-02-06Merge release-20200127.0-88-g6bd59b4 (automated)gVisor bot
2020-02-06Update link address for targets of Neighbor AdvertsGhanan Gowripalan
Get the link address for the target of an NDP Neighbor Advertisement from the NDP Target Link Layer Address option. Tests: - ipv6.TestNeighorAdvertisementWithTargetLinkLayerOption - ipv6.TestNeighorAdvertisementWithInvalidTargetLinkLayerOption PiperOrigin-RevId: 293632609
2020-02-06Merge release-20200127.0-86-g5ff7808 (automated)gVisor bot
2020-02-06Move p9.pool to a separate packageAndrei Vagin
PiperOrigin-RevId: 293617493
2020-02-06Merge release-20200127.0-85-g1b6a12a (automated)gVisor bot
2020-02-05Add notes to relevant tests.Adin Scannell
These were out-of-band notes that can help provide additional context and simplify automated imports. PiperOrigin-RevId: 293525915
2020-02-06Merge release-20200127.0-84-gf3d9560 (automated)gVisor bot
2020-02-05recv() on a closed TCP socket returns ENOTCONNEyal Soha
From RFC 793 s3.9 p58 Event Processing: If RECEIVE Call arrives in CLOSED state and the user has access to such a connection, the return should be "error: connection does not exist" Fixes #1598 PiperOrigin-RevId: 293494287
2020-02-05Merge release-20200127.0-82-geea0eee (automated)gVisor bot
2020-02-05Disable get/set xattrs until list/remove exist too.Nicolas Lacasse
PiperOrigin-RevId: 293411655
2020-02-05Merge release-20200127.0-80-g665b614 (automated)gVisor bot
2020-02-04Support RTM_NEWADDR and RTM_GETLINK in (rt)netlink.Ting-Yu Wang
PiperOrigin-RevId: 293271055
2020-02-05Merge release-20200127.0-79-gb29aeeb (automated)gVisor bot
2020-02-04Merge pull request #1683 from kevinGC:ipt-udp-matchersgVisor bot
PiperOrigin-RevId: 293243342
2020-02-05Merge release-20200127.0-67-ga26a954 (automated)gVisor bot
2020-02-04Add socket connection stress test.Ian Gudger
Tests 65k connection attempts on common types of sockets to check for port leaks. Also fixes a bug where dual-stack sockets wouldn't properly re-queue segments received while closing. PiperOrigin-RevId: 293241166
2020-02-04Merge release-20200127.0-65-g95ce8bb (automated)gVisor bot
2020-02-04Merge release-20200127.0-63-g6823b5e (automated)gVisor bot
2020-02-04timer_create(2) should return 0 on successMichael Pratt
The timer ID is copied out to the argument. Fixes #1738 PiperOrigin-RevId: 293210801
2020-02-04Merge release-20200127.0-61-gf5072ca (automated)gVisor bot
2020-02-04Fix safecopy test.Adin Scannell
This is failing in Go1.14 due to new checkptr constraints. This version should avoid hitting this constraints by doing "dangerous" pointer math less dangerously? PiperOrigin-RevId: 293205764
2020-02-04Merge release-20200127.0-60-gdcffddf (automated)gVisor bot
2020-02-04Remove argument from vfs.MountNamespace.DecRef()Fabricio Voznika
Updates #1035 PiperOrigin-RevId: 293194631
2020-02-04Merge release-20200127.0-59-g492229d (automated)gVisor bot
2020-02-04VFS2 gofer clientJamie Liu
Updates #1198 Opening host pipes (by spinning in fdpipe) and host sockets is not yet complete, and will be done in a future CL. Major differences from VFS1 gofer client (sentry/fs/gofer), with varying levels of backportability: - "Cache policies" are replaced by InteropMode, which control the behavior of timestamps in addition to caching. Under InteropModeExclusive (analogous to cacheAll) and InteropModeWritethrough (analogous to cacheAllWritethrough), client timestamps are *not* written back to the server (it is not possible in 9P or Linux for clients to set ctime, so writing back client-authoritative timestamps results in incoherence between atime/mtime and ctime). Under InteropModeShared (analogous to cacheRemoteRevalidating), client timestamps are not used at all (remote filesystem clocks are authoritative). cacheNone is translated to InteropModeShared + new option filesystemOptions.specialRegularFiles. - Under InteropModeShared, "unstable attribute" reloading for permission checks, lookup, and revalidation are fused, which is feasible in VFS2 since gofer.filesystem controls path resolution. This results in a ~33% reduction in RPCs for filesystem operations compared to cacheRemoteRevalidating. For example, consider stat("/foo/bar/baz") where "/foo/bar/baz" fails revalidation, resulting in the instantiation of a new dentry: VFS1 RPCs: getattr("/") // fs.MountNamespace.FindLink() => fs.Inode.CheckPermission() => gofer.inodeOperations.check() => gofer.inodeOperations.UnstableAttr() walkgetattr("/", "foo") = fid1 // fs.Dirent.walk() => gofer.session.Revalidate() => gofer.cachePolicy.Revalidate() clunk(fid1) getattr("/foo") // CheckPermission walkgetattr("/foo", "bar") = fid2 // Revalidate clunk(fid2) getattr("/foo/bar") // CheckPermission walkgetattr("/foo/bar", "baz") = fid3 // Revalidate clunk(fid3) walkgetattr("/foo/bar", "baz") = fid4 // fs.Dirent.walk() => gofer.inodeOperations.Lookup getattr("/foo/bar/baz") // linux.stat() => gofer.inodeOperations.UnstableAttr() VFS2 RPCs: getattr("/") // gofer.filesystem.walkExistingLocked() walkgetattr("/", "foo") = fid1 // gofer.filesystem.stepExistingLocked() clunk(fid1) // No getattr: walkgetattr already updated metadata for permission check walkgetattr("/foo", "bar") = fid2 clunk(fid2) walkgetattr("/foo/bar", "baz") = fid3 // No clunk: fid3 used for new gofer.dentry // No getattr: walkgetattr already updated metadata for stat() - gofer.filesystem.unlinkAt() does not require instantiation of a dentry that represents the file to be deleted. Updates #898. - gofer.regularFileFD.OnClose() skips Tflushf for regular files under InteropModeExclusive, as it's nonsensical to request a remote file flush without flushing locally-buffered writes to that remote file first. - Symlink targets are cached when InteropModeShared is not in effect. - p9.QID.Path (which is already required to be unique for each file within a server, and is accordingly already synthesized from device/inode numbers in all known gofers) is used as-is for inode numbers, rather than being mapped along with attr.RDev in the client to yet another synthetic inode number. - Relevant parts of fsutil.CachingInodeOperations are inlined directly into gofer package code. This avoids having to duplicate part of its functionality in fsutil.HostMappable. PiperOrigin-RevId: 293190213
2020-02-04Merge release-20200127.0-58-gd7cd484 (automated)gVisor bot
2020-02-04Add support for sentry internal pipe for gofer mountsFabricio Voznika
Internal pipes are supported similarly to how internal UDS is done. It is also controlled by the same flag. Fixes #1102 PiperOrigin-RevId: 293150045
2020-02-04Merge release-20200127.0-57-gf37e913 (automated)gVisor bot
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