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2020-08-27Merge release-20200818.0-74-g6f8fb7e0d (automated)gVisor bot
2020-08-27Improve type safety for socket optionsGhanan Gowripalan
The existing implementation for {G,S}etSockOpt take arguments of an empty interface type which all types (implicitly) implement; any type may be passed to the functions. This change introduces marker interfaces for socket options that may be set or queried which socket option types implement to ensure that invalid types are caught at compile time. Different interfaces are used to allow the compiler to enforce read-only or set-only socket options. Fixes #3714. RELNOTES: n/a PiperOrigin-RevId: 328832161
2020-08-27Merge release-20200818.0-73-g29d528399 (automated)gVisor bot
2020-08-27Merge pull request #3077 from jinmouil:beef-write-syscallgVisor bot
PiperOrigin-RevId: 328824023
2020-08-27Merge release-20200818.0-71-g26c588f06 (automated)gVisor bot
2020-08-27Fix BadSocketPair for open source.Zach Koopmans
BadSocketPair test will return several errnos (EPREM, ESOCKTNOSUPPORT, EAFNOSUPPORT) meaning the test is just too specific. Checking the syscall fails is appropriate. PiperOrigin-RevId: 328813071
2020-08-27Merge release-20200818.0-70-ga5f1e7426 (automated)gVisor bot
2020-08-27Skip IPv6UDPUnboundSocketNetlinkTest on native linuxGhanan Gowripalan
...while we figure out of we want to consider the loopback interface bound to all IPs in an assigned IPv6 subnet, or not (to maintain compatibility with Linux). PiperOrigin-RevId: 328807974
2020-08-27Merge release-20200818.0-69-gdc81eb9c3 (automated)gVisor bot
2020-08-27Add function to get error from a tcpip.EndpointGhanan Gowripalan
In an upcoming CL, socket option types are made to implement a marker interface with pointer receivers. Since this results in calling methods of an interface with a pointer, we incur an allocation when attempting to get an Endpoint's last error with the current implementation. When calling the method of an interface, the compiler is unable to determine what the interface implementation does with the pointer (since calling a method on an interface uses virtual dispatch at runtime so the compiler does not know what the interface method will do) so it allocates on the heap to be safe incase an implementation continues to hold the pointer after the functioon returns (the reference escapes the scope of the object). In the example below, the compiler does not know what b.foo does with the reference to a it allocates a on the heap as the reference to a may escape the scope of a. ``` var a int var b someInterface b.foo(&a) ``` This change removes the opportunity for that allocation. RELNOTES: n/a PiperOrigin-RevId: 328796559
2020-08-27Merge release-20200818.0-68-g01a35a2f1 (automated)gVisor bot
2020-08-27ip6tables: (de)serialize ip6tables structsKevin Krakauer
More implementation+testing to follow. #3549. PiperOrigin-RevId: 328770160
2020-08-27Merge release-20200818.0-67-g140ffb600 (automated)gVisor bot
2020-08-27Fix JobControl tests for open source.Zach Koopmans
ioctl calls with TIOCSCTTY fail if the calling process already has a controlling terminal, which occurs on a 5.4 kernel like our Ubuntu 18 CI. Thus, run tests calling ioctl TTOCSCTTY in clean subprocess. Also, while we're here, switch out non-inclusive master/slave for main/replica. PiperOrigin-RevId: 328756598
2020-08-27Merge release-20200818.0-66-g32e7a54f7 (automated)gVisor bot
2020-08-26Make flag propagation automaticFabricio Voznika
Use reflection and tags to provide automatic conversion from Config to flags. This makes adding new flags less error-prone, skips flags using default values (easier to read), and makes tests correctly use default flag values for test Configs. Updates #3494 PiperOrigin-RevId: 328662070
2020-08-27Merge release-20200818.0-65-ga4b1c6f5a (automated)gVisor bot
2020-08-26Merge pull request #3742 from lubinszARM:pr_n1_1gVisor bot
PiperOrigin-RevId: 328639254
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
2020-08-26beef up write syscall testsJinmou Li
Added a few tests for write(2) and pwrite(2) 1. Regular Files For write(2) - write zero bytes should not move the offset - write non-zero bytes should increment the offset the exact amount - write non-zero bytes after a lseek() should move the offset the exact amount after the seek - write non-zero bytes with O_APPEND should move the offset the exact amount after original EOF For pwrite(2), offset is not affected when - pwrite zero bytes - pwrite non-zero bytes For EOF, added a test asserting the EOF (indicated by lseek(SEEK_END)) is updated properly after writing non-zero bytes 2. Symlink Added one pwite64() call for symlink that is written as a counterpart of the existing test using pread64()
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
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