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2020-08-27Merge release-20200818.0-63-g38895db3a (automated)gVisor bot
2020-08-26Merge pull request #3717 from makocchi-git:fix/deb_postinstgVisor bot
PiperOrigin-RevId: 328638615
2020-08-26Merge release-20200818.0-61-g983a55aa0 (automated)gVisor bot
2020-08-26Support stdlib analyzers with nogo.Adin Scannell
This immediately revealed an escape analysis violation (!), where the sync.Map was being used in a context that escapes were not allowed. This is a relatively minor fix and is included. PiperOrigin-RevId: 328611237
2020-08-26Merge release-20200818.0-60-g366f1a8f1 (automated)gVisor bot
2020-08-26Remove spurious fd.IncRef().Nicolas Lacasse
PiperOrigin-RevId: 328583461
2020-08-26Merge release-20200818.0-59-gb03e0ee80 (automated)gVisor bot
2020-08-26[runtime-tests] Exclude flaky nodejs test.Ayush Ranjan
PiperOrigin-RevId: 328579755
2020-08-26Merge release-20200818.0-58-g83a8b309e (automated)gVisor bot
2020-08-26tmpfs: Allow xattrs in the trusted namespace if creds has CAP_SYS_ADMIN.Nicolas Lacasse
This is needed to support the overlay opaque attribute. PiperOrigin-RevId: 328552985
2020-08-26Merge release-20200818.0-57-gebf529337 (automated)gVisor bot
2020-08-25Fix SocketPairTest and BadSocketPairTest in opensource.Zach Koopmans
PiperOrigin-RevId: 328467152
2020-08-26Merge release-20200818.0-56-gdf3c105f4 (automated)gVisor bot
2020-08-25Use new reference count utility throughout gvisor.Dean Deng
This uses the refs_vfs2 template in vfs2 as well as objects common to vfs1 and vfs2. Note that vfs1-only refcounts are not replaced, since vfs1 will be deleted soon anyway. The following structs now use the new tool, with leak check enabled: devpts:rootInode fuse:inode kernfs:Dentry kernfs:dir kernfs:readonlyDir kernfs:StaticDirectory proc:fdDirInode proc:fdInfoDirInode proc:subtasksInode proc:taskInode proc:tasksInode vfs:FileDescription vfs:MountNamespace vfs:Filesystem sys:dir kernel:FSContext kernel:ProcessGroup kernel:Session shm:Shm mm:aioMappable mm:SpecialMappable transport:queue And the following use the template, but because they currently are not leak checked, a TODO is left instead of enabling leak check in this patch: kernel:FDTable tun:tunEndpoint Updates #1486. PiperOrigin-RevId: 328460377
2020-08-26use is-active instead of statusmakocchi-git
2020-08-25Merge release-20200818.0-55-g247dcd62d (automated)gVisor bot
2020-08-25Return non-zero size for tmpfs statfs(2).Jamie Liu
This does not implement accepting or enforcing any size limit, which will be more complex and has performance implications; it just returns a fixed non-zero size. Updates #1936 PiperOrigin-RevId: 328428588
2020-08-25Merge release-20200818.0-54-gcb573c8e0 (automated)gVisor bot
2020-08-25Expose basic coverage information to userspace through kcov interface.Dean Deng
In Linux, a kernel configuration is set that compiles the kernel with a custom function that is called at the beginning of every basic block, which updates the memory-mapped coverage information. The Go coverage tool does not allow us to inject arbitrary instructions into basic blocks, but it does provide data that we can convert to a kcov-like format and transfer them to userspace through a memory mapping. Note that this is not a strict implementation of kcov, which is especially tricky to do because we do not have the same coverage tools available in Go that that are available for the actual Linux kernel. In Linux, a kernel configuration is set that compiles the kernel with a custom function that is called at the beginning of every basic block to write program counters to the kcov memory mapping. In Go, however, coverage tools only give us a count of basic blocks as they are executed. Every time we return to userspace, we collect the coverage information and write out PCs for each block that was executed, providing userspace with the illusion that the kcov data is always up to date. For convenience, we also generate a unique synthetic PC for each block instead of using actual PCs. Finally, we do not provide thread-specific coverage data (each kcov instance only contains PCs executed by the thread owning it); instead, we will supply data for any file specified by -- instrumentation_filter. Also, fix issue in nogo that was causing pkg/coverage:coverage_nogo compilation to fail. PiperOrigin-RevId: 328426526
2020-08-25Merge release-20200818.0-53-g70a7a3ac7 (automated)gVisor bot
2020-08-25Only send an ICMP error message if UDP checksum is valid.Toshi Kikuchi
Test: - TestV4UnknownDestination - TestV6UnknownDestination PiperOrigin-RevId: 328424137
2020-08-25Merge release-20200818.0-52-g430487c9e (automated)gVisor bot
2020-08-25[go-marshal] Enable auto-marshalling for host tty.Ayush Ranjan
PiperOrigin-RevId: 328415633
2020-08-25Merge release-20200818.0-51-gbee07a2d6 (automated)gVisor bot
2020-08-25Link to PHP bug for disabled disk space tests.Jamie Liu
PiperOrigin-RevId: 328410399
2020-08-25Merge release-20200818.0-50-gc28bbee99 (automated)gVisor bot
2020-08-25overlay: clonePrivateMount must pass a Dentry reference to MakeVirtualDentry.Nicolas Lacasse
PiperOrigin-RevId: 328410065
2020-08-25Merge release-20200818.0-49-g1f0d23c7a (automated)gVisor bot
2020-08-25Clarify comment on NetworkProtocolNumber.Bhasker Hariharan
The actual values used for this field in Netstack are actually EtherType values of the protocol in an Ethernet frame. Eg. header.IPv4ProtocolNumber is 0x0800 and not the number of the IPv4 Protocol Number itself which is 4. Similarly header.IPv6ProtocolNumber is set to 0x86DD whereas the IPv6 protocol number is 41. See: - https://www.iana.org/assignments/ieee-802-numbers/ieee-802-numbers.xhtml (For EtherType) - https://www.iana.org/assignments/protocol-numbers/protocol-numbers.xhtml (For ProtocolNumbers) PiperOrigin-RevId: 328407293
2020-08-25Merge release-20200818.0-48-ge65089029 (automated)gVisor bot
2020-08-25Provide --secret-keyring parameter (for newer gpg).Adin Scannell
PiperOrigin-RevId: 328403914
2020-08-25Merge release-20200818.0-47-g3cba0a41d (automated)gVisor bot
2020-08-25remove iptables sockopt special casesKevin Krakauer
iptables sockopts were kludged into an unnecessary check, this properly relegates them to the {get,set}SockOptIP functions. PiperOrigin-RevId: 328395135
2020-08-25Merge release-20200818.0-46-g3b2e50f53 (automated)gVisor bot
2020-08-25Include shim in individual released binaries.Adin Scannell
The debian rules are also moved to the top-level, since they apply to binaries outside the //runsc directory. Fixes #3665 PiperOrigin-RevId: 328379709
2020-08-25Merge release-20200818.0-45-gb0c53f847 (automated)gVisor bot
2020-08-25Add nogo support to go_binary and go_test targets.Adin Scannell
Updates #3374 PiperOrigin-RevId: 328378700
2020-08-25Merge release-20200818.0-44-gb83758cd8 (automated)gVisor bot
2020-08-25Change "Fd" member to "FD" according to convensiongVisor bot
PiperOrigin-RevId: 328374775
2020-08-25Merge release-20200818.0-43-ga174aa759 (automated)gVisor bot
2020-08-25Add option to replace linkAddrCache with neighborCacheSam Balana
This change adds an option to replace the current implementation of ARP through linkAddrCache, with an implementation of NUD through neighborCache. Switching to using NUD for both ARP and NDP is beneficial for the reasons described by RFC 4861 Section 3.1: "[Using NUD] significantly improves the robustness of packet delivery in the presence of failing routers, partially failing or partitioned links, or nodes that change their link-layer addresses. For instance, mobile nodes can move off-link without losing any connectivity due to stale ARP caches." "Unlike ARP, Neighbor Unreachability Detection detects half-link failures and avoids sending traffic to neighbors with which two-way connectivity is absent." Along with these changes exposes the API for querying and operating the neighbor cache. Operations include: - Create a static entry - List all entries - Delete all entries - Remove an entry by address This also exposes the API to change the NUD protocol constants on a per-NIC basis to allow Neighbor Discovery to operate over links with widely varying performance characteristics. See [RFC 4861 Section 10][1] for the list of constants. Finally, an API for subscribing to NUD state changes is exposed through NUDDispatcher. See [RFC 4861 Appendix C][3] for the list of edges. Tests: pkg/tcpip/network/arp:arp_test + TestDirectRequest pkg/tcpip/network/ipv6:ipv6_test + TestLinkResolution + TestNDPValidation + TestNeighorAdvertisementWithTargetLinkLayerOption + TestNeighorSolicitationResponse + TestNeighorSolicitationWithSourceLinkLayerOption + TestRouterAdvertValidation pkg/tcpip/stack:stack_test + TestCacheWaker + TestForwardingWithFakeResolver + TestForwardingWithFakeResolverManyPackets + TestForwardingWithFakeResolverManyResolutions + TestForwardingWithFakeResolverPartialTimeout + TestForwardingWithFakeResolverTwoPackets + TestIPv6SourceAddressSelectionScopeAndSameAddress [1]: https://tools.ietf.org/html/rfc4861#section-10 [2]: https://tools.ietf.org/html/rfc4861#appendix-C Fixes #1889 Fixes #1894 Fixes #1895 Fixes #1947 Fixes #1948 Fixes #1949 Fixes #1950 PiperOrigin-RevId: 328365034
2020-08-25Merge release-20200818.0-42-gb26f7503b (automated)gVisor bot
2020-08-25Support SO_LINGER socket option.Nayana Bidari
When SO_LINGER option is enabled, the close will not return until all the queued messages are sent and acknowledged for the socket or linger timeout is reached. If the option is not set, close will return immediately. This option is mainly supported for connection oriented protocols such as TCP. PiperOrigin-RevId: 328350576
2020-08-25Merge release-20200818.0-41-g10fa583c3 (automated)gVisor bot
2020-08-25Disable PHP disk space tests.Jamie Liu
These tests print disk_free_space()/disk_total_space() and expect the printed result to be an integer (despite the fact that both the documented and returned type is float). After cl/297213789, free/total disk space on tmpfs is sufficiently large that PHP prints the result in scientific notation instead: ========DIFF======== 012+ float(9.2233720368548E+18) 013+ float(9.2233720368548E+18) 012- float(%d) 013- float(%d) ========DONE======== FAIL disk_total_space() and disk_free_space() tests [ext/standard/tests/file/disk.phpt] PiperOrigin-RevId: 328349906
2020-08-25Merge release-20200818.0-40-g46485f9d4 (automated)gVisor bot
2020-08-25[go-marshal] Support marshalling for structs with names starting with W.Ayush Ranjan
Due to how marshallable interface implementation was generated, we could not marshal a struct whose named started with W because there was a naming collision with parameter (w io.Writer) and type (w *StuctName). Used "writer" as parameter name to avoid collision. PiperOrigin-RevId: 328343930
2020-08-25Merge release-20200818.0-39-gae332d96e (automated)gVisor bot
2020-08-25Fix TCP_LINGER2 behavior to match linux.Bhasker Hariharan
We still deviate a bit from linux in how long we will actually wait in FIN-WAIT-2. Linux seems to cap it with TIME_WAIT_LEN and it's not completely obvious as to why it's done that way. For now I think we can ignore that and fix it if it really is an issue. PiperOrigin-RevId: 328324922
2020-08-25Merge release-20200818.0-38-gc61f6fcf6 (automated)gVisor bot
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