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2020-01-03Merge release-20191213.0-57-gd1d878a (automated)gVisor bot
2020-01-03Support generating opaque interface identifiers as defined by RFC 7217Ghanan Gowripalan
Support generating opaque interface identifiers as defined by RFC 7217 for auto-generated IPv6 link-local addresses. Opaque interface identifiers will also be used for IPv6 addresses auto-generated via SLAAC in a later change. Note, this change does not handle retries in response to DAD conflicts yet. That will also come in a later change. Tests: Test that when configured to generated opaque IIDs, they are properly generated as outlined by RFC 7217. PiperOrigin-RevId: 288035349
2019-12-30Merge release-20191213.0-56-g1f384ac (automated)gVisor bot
2019-12-30Add VFS2 support for device special files.Jamie Liu
- Add FileDescriptionOptions.UseDentryMetadata, which reduces the amount of boilerplate needed for device FDs and the like between filesystems. - Switch back to having FileDescription.Init() take references on the Mount and Dentry; otherwise managing refcounts around failed calls to OpenDeviceSpecialFile() / Device.Open() is tricky. PiperOrigin-RevId: 287575574
2019-12-27Merge release-20191213.0-55-g796f53c (automated)gVisor bot
2019-12-27Add VFS2 support for /proc/filesystems.Jamie Liu
Updates #1195 PiperOrigin-RevId: 287269106
2019-12-26Merge release-20191213.0-54-g3c125eb (automated)gVisor bot
2019-12-26Initial procfs implementation in VFSv2Fabricio Voznika
Updates #1195 PiperOrigin-RevId: 287227722
2019-12-26Merge release-20191213.0-53-g5b9034c (automated)gVisor bot
2019-12-26Merge pull request #1461 from xiaobo55x:ptrace_sysemugVisor bot
PiperOrigin-RevId: 287225250
2019-12-26Merge release-20191213.0-51-g7b5a59d (automated)gVisor bot
2019-12-26Merge pull request #1460 from lubinszARM:pr_clean_code1gVisor bot
PiperOrigin-RevId: 287221280
2019-12-26Merge release-20191213.0-49-g87e4d03 (automated)gVisor bot
2019-12-26Automated rollback of changelist 287029703gVisor bot
PiperOrigin-RevId: 287217899
2019-12-24Merge release-20191213.0-48-ge013c48 (automated)gVisor bot
2019-12-24Enable IP_RECVTOS socket option for datagram socketsRyan Heacock
Added the ability to get/set the IP_RECVTOS socket option on UDP endpoints. If enabled, TOS from the incoming Network Header passed as ancillary data in the ControlMessages. Test: * Added unit test to udp_test.go that tests getting/setting as well as verifying that we receive expected TOS from incoming packet. * Added a syscall test PiperOrigin-RevId: 287029703
2019-12-24slight changes to ring0&pagetables for Arm64Bin Lu
There are 2 jobs have been finished in this patch: 1, a comment was added to explain the purpose of the extra NOPs in Vectors(). 2, some merge errors were fixed. Signed-off-by: Bin Lu <bin.lu@arm.com>
2019-12-24Merge release-20191213.0-47-g574e988 (automated)gVisor bot
2019-12-23Fix deadlock in kernfs.Filesystem.revalidateChildLockedFabricio Voznika
It was calling Dentry.InsertChild with the dentry's mutex already locked. Updates #1035 PiperOrigin-RevId: 286962742
2019-12-23Merge release-20191213.0-46-gf45df75 (automated)gVisor bot
2019-12-23Clean up vfs.FilesystemImpl methods that operate on parent directories.Jamie Liu
- Make FilesystemImpl methods that operate on parent directories require !rp.Done() (i.e. there is at least one path component to resolve) as precondition and postcondition (in cases where they do not finish path resolution due to mount boundary / absolute symlink), and require that they do not need to follow the last path component (the file being created / deleted) as a symlink. Check for these in VFS. - Add FilesystemImpl.GetParentDentryAt(), which is required to obtain the old parent directory for VFS.RenameAt(). (Passing the Dentry to be renamed instead has the wrong semantics if the file named by the old path is a mount point since the Dentry will be on the wrong Mount.) - Update memfs to implement these methods correctly (?), including RenameAt. - Change fspath.Parse() to allow empty paths (to simplify implementation of AT_EMPTY_PATH). - Change vfs.PathOperation to take a fspath.Path instead of a raw pathname; non-test callers will need to fspath.Parse() pathnames themselves anyway in order to detect absolute paths and select PathOperation.Start accordingly. PiperOrigin-RevId: 286934941
2019-12-23Merge release-20191213.0-45-ge548ce1 (automated)gVisor bot
2019-12-23Add python3-pip as dependency for Kokoro VM images.Zach Koopmans
bm-tools requires python3 and pip3 in order to run tests. Add pip3 so that dependencies correctly install for Kokoro runs with bazel. PiperOrigin-RevId: 286923840
2019-12-23Merge release-20191213.0-44-g5bc4ae9 (automated)gVisor bot
2019-12-23Clear any host-specific NDP state when becoming a routerGhanan Gowripalan
This change supports clearing all host-only NDP state when NICs become routers. All discovered routers, discovered on-link prefixes and auto-generated addresses will be invalidated when becoming a router. This is because normally, routers do not process Router Advertisements to discover routers or on-link prefixes, and do not do SLAAC. Tests: Unittest to make sure that all discovered routers, discovered prefixes and auto-generated addresses get invalidated when transitioning from a host to a router. PiperOrigin-RevId: 286902309
2019-12-23Replace syscall.PTRACE_SYSEMU with unix.PTRACE_SYSEMUHaibo Xu
Linux PTRACE_SYSEMU support on arm64 was merged to mainline from V5.3, and the corresponding support in go also enabled recently. Since the "syscall" package is locked down from go 1.4, so the ptrace PTRACE_SYSEMU definition can't be added to package "syscall" on arm64. According to the golang community, updates required by new systems or versions should use the corresponding package in the golang.org/x/sys repository instead(https://golang.org/pkg/syscall/). Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I2f917bb2be62f990c3e158e2bb99e094ea03f751
2019-12-21Merge release-20191213.0-43-gd1528df (automated)gVisor bot
2019-12-20Merge pull request #1026 from lubinszARM:pr_savablegVisor bot
PiperOrigin-RevId: 286667216
2019-12-21Merge release-20191213.0-41-g818eb22 (automated)gVisor bot
2019-12-20Add vfs.ResolvingPath.HandleJump().Jamie Liu
PiperOrigin-RevId: 286666533
2019-12-21Merge release-20191213.0-40-g21a14e9 (automated)gVisor bot
2019-12-20Add vfs.Dentry.Children().Jamie Liu
PiperOrigin-RevId: 286660774
2019-12-20Merge release-20191213.0-39-g08c39e2 (automated)gVisor bot
2019-12-20Change TODO to track correct bug.Kevin Krakauer
PiperOrigin-RevId: 286639163
2019-12-20Merge release-20191213.0-38-g3eb489e (automated)gVisor bot
2019-12-20Move VFS2 file description status flags to vfs.FileDescription.Jamie Liu
PiperOrigin-RevId: 286616668
2019-12-20Merge release-20191213.0-37-g822d847 (automated)gVisor bot
2019-12-20Check for valid nfds before copying in an fd set.Dean Deng
Otherwise, CopyInFDSet will try to allocate a negative-length slice. PiperOrigin-RevId: 286584907
2019-12-20Merge release-20191213.0-36-g29955a4 (automated)gVisor bot
2019-12-19futex: wake one waiter if futex_wake is called with a non-positive valueAndrei Vagin
This change is needed to be compatible with the Linux kernel. There is no glibc wrapper for the futex system call, so it is easy to make a mistake and call syscall(__NR_futex, FUTEX_WAKE, addr) without the fourth argument. This works on Linux, because it wakes one waiter even if val is nonpositive. PiperOrigin-RevId: 286494396
2019-12-20Merge release-20191213.0-35-g7419e0e (automated)gVisor bot
2019-12-19Parameterize mmap tests.Dean Deng
This test suite has existed for quite a while and has become kind of messy. Various tests can be joined together by parameterizing. PiperOrigin-RevId: 286482240
2019-12-19Merge release-20191213.0-34-g80c8aec (automated)gVisor bot
2019-12-19Install python2 in the Dockerfile.Brad Burlage
Without it, we get a build failure (inside the container) when trying to build //runsc. PiperOrigin-RevId: 286474518
2019-12-19Merge release-20191213.0-33-gbb00438 (automated)gVisor bot
2019-12-19Make masterInodeOperations.Truncate take a pointer receiver.Nicolas Lacasse
Otherwise a copy happens, which triggers a data race when reading masterInodeOperations.SimpleFileOperations.uattr, which must be accessed with a lock held. PiperOrigin-RevId: 286464473
2019-12-19Merge release-20191213.0-32-g57ce26c (automated)gVisor bot
2019-12-18net/tcp: allow to call listen without bindAndrei Vagin
When listen(2) is called on an unbound socket, the socket is automatically bound to a random free port with the local address set to INADDR_ANY. PiperOrigin-RevId: 286305906
2019-12-19Merge release-20191213.0-31-g98e8246 (automated)gVisor bot
2019-12-18Merge pull request #890 from lubinszARM:pr_phyapgVisor bot
PiperOrigin-RevId: 286299056
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