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2020-06-15Merge release-20200522.0-154-g885605c5e (automated)gVisor bot
2020-06-15Remove blacklist from //test/runtimesMichael Pratt
Updates #2972 PiperOrigin-RevId: 316534165
2020-06-15Merge release-20200522.0-153-geb6d3d771 (automated)gVisor bot
2020-06-15Internal change.Martijn Vels
PiperOrigin-RevId: 316492839
2020-06-15Merge release-20200522.0-152-gf23f62c2c (automated)gVisor bot
2020-06-15Correctly set the test VFS environment variable.Rahat Mahmood
Also fix test bugs uncovered now that they aren't silently skipped on VFS2. Updates #1487. PiperOrigin-RevId: 316415807
2020-06-13Merge release-20200522.0-151-g3b5eaad3c (automated)gVisor bot
2020-06-12Allow reading IP_MULTICAST_LOOP and IP_MULTICAST_TTL on TCP sockets.Ian Gudger
I am not really sure what the point of this is, but someone filed a bug about it, so I assume something relies on it. PiperOrigin-RevId: 316225127
2020-06-12Merge release-20200522.0-150-g82313667e (automated)gVisor bot
2020-06-12Make GenerateRandomPayload available to all testsTony Gong
Moved the function for generating a payload of random byets of a specified length into the testbench package so that it's availbale for all tests to use. Added a test case to the IPv4 ID uniqueness test which uses a payload length of 512 bytes. This test case passes for gVisor currently, whereas the test case with a small payload of 11 bytes fails because gVisor only assigns the ID field if the IP payload is sufficiently large. PiperOrigin-RevId: 316185097
2020-06-12Merge release-20200522.0-149-g6ec9d6040 (automated)gVisor bot
2020-06-12vfs2: implement fcntl(fd, F_SETFL, flags)Andrei Vagin
PiperOrigin-RevId: 316148074
2020-06-12Merge release-20200522.0-148-g61d6c059a (automated)gVisor bot
2020-06-11Replace use of %v in packetimpact testsMithun Iyer
PiperOrigin-RevId: 316027588
2020-06-12Merge release-20200522.0-147-g8ea99d58f (automated)gVisor bot
2020-06-11Set the HOME environment variable for sub-containers.Ian Lewis
Fixes #701 PiperOrigin-RevId: 316025635
2020-06-12Merge release-20200522.0-146-g5a894e35a (automated)gVisor bot
2020-06-11Remove generated logs when test succeeds.Adin Scannell
PiperOrigin-RevId: 316022884
2020-06-12Merge release-20200522.0-145-g77c206e37 (automated)gVisor bot
2020-06-11Add //pkg/sentry/fsimpl/overlay.Jamie Liu
Major differences from existing overlay filesystems: - Linux allows lower layers in an overlay to require revalidation, but not the upper layer. VFS1 allows the upper layer in an overlay to require revalidation, but not the lower layer. VFS2 does not allow any layers to require revalidation. (Now that vfs.MkdirOptions.ForSyntheticMountpoint exists, no uses of overlay in VFS1 are believed to require upper layer revalidation; in particular, the requirement that the upper layer support the creation of "trusted." extended attributes for whiteouts effectively required the upper filesystem to be tmpfs in most cases.) - Like VFS1, but unlike Linux, VFS2 overlay does not attempt to make mutations of the upper layer atomic using a working directory and features like RENAME_WHITEOUT. (This may change in the future, since not having a working directory makes error recovery for some operations, e.g. rmdir, particularly painful.) - Like Linux, but unlike VFS1, VFS2 represents whiteouts using character devices with rdev == 0; the equivalent of the whiteout attribute on directories is xattr trusted.overlay.opaque = "y"; and there is no equivalent to the whiteout attribute on non-directories since non-directories are never merged with lower layers. - Device and inode numbers work as follows: - In Linux, modulo the xino feature and a special case for when all layers are the same filesystem: - Directories use the overlay filesystem's device number and an ephemeral inode number assigned by the overlay. - Non-directories that have been copied up use the device and inode number assigned by the upper filesystem. - Non-directories that have not been copied up use a per-(overlay, layer)-pair device number and the inode number assigned by the lower filesystem. - In VFS1, device and inode numbers always come from the lower layer unless "whited out"; this has the adverse effect of requiring interaction with the lower filesystem even for non-directory files that exist on the upper layer. - In VFS2, device and inode numbers are assigned as in Linux, except that xino and the samefs special case are not supported. - Like Linux, but unlike VFS1, VFS2 does not attempt to maintain memory mapping coherence across copy-up. (This may have to change in the future, as users may be dependent on this property.) - Like Linux, but unlike VFS1, VFS2 uses the overlayfs mounter's credentials when interacting with the overlay's layers, rather than the caller's. - Like Linux, but unlike VFS1, VFS2 permits multiple lower layers in an overlay. - Like Linux, but unlike VFS1, VFS2's overlay filesystem is application-mountable. Updates #1199 PiperOrigin-RevId: 316019067
2020-06-12Merge release-20200522.0-144-gdc4e0157e (automated)gVisor bot
2020-06-11Add test for reordering.Ian Gudger
Tests the effect of reordering on retransmission and window size. Test covers the expected behavior of both Linux and netstack, however, netstack does not behave as expected. Further, the current expected behavior of netstack is not ideal and should be adjusted in the future. PiperOrigin-RevId: 316015184
2020-06-12Merge release-20200522.0-143-gfbe41987c (automated)gVisor bot
2020-06-11Enable nogo againFabricio Voznika
PiperOrigin-RevId: 316011323
2020-06-11Merge release-20200522.0-142-g4c0a8bdaf (automated)gVisor bot
2020-06-11Do not use tentative addresses for routesGhanan Gowripalan
Tentative addresses should not be used when finding a route. This change fixes a bug where a tentative address may have been used. Test: stack_test.TestDADResolve PiperOrigin-RevId: 315997624
2020-06-11Merge release-20200522.0-141-g4f111b638 (automated)gVisor bot
2020-06-11Merge pull request #2863 from lubinszARM:pr_sndbufgVisor bot
PiperOrigin-RevId: 315991648
2020-06-11Merge release-20200522.0-139-gd58d57606 (automated)gVisor bot
2020-06-11Don't copy structs with sync.Mutex during initializationFabricio Voznika
During inititalization inode struct was copied around, but it isn't great pratice to copy it around since it contains ref count and sync.Mutex. Updates #1480 PiperOrigin-RevId: 315983788
2020-06-11Merge release-20200522.0-138-g11dc95e6c (automated)gVisor bot
2020-06-11Merge pull request #2705 from lubinszARM:pr_sigfp_nestedgVisor bot
PiperOrigin-RevId: 315979564
2020-06-11Merge release-20200522.0-136-g13f2664cf (automated)gVisor bot
2020-06-11Merge pull request #2946 from avagin:travis-pipefailgVisor bot
PiperOrigin-RevId: 315972822
2020-06-11Merge release-20200522.0-134-g44575bf72 (automated)gVisor bot
2020-06-11Refactor packetimpact Connection typesgVisor bot
Reorganize the Connection types such that the defined types no longer expose the lower-level functions SendFrame and CreateFrame. These methods are still exported on the underlying Connection type, and thus can be accessed via a type-cast. In future, defined types should have one or more type-safe versions of the send() method on Connection, e.g. UDPIPv4 has Send() which allows the UDP header to be overridden and SendIP() which allows both the IPv4 and UDP headers to be modified. testbench.Connection gets a SendFrameStateless method which sends frames without updating the state of any of the layers. This should be used when sending out-of-band control messages such as ICMP messages, as using the normal Send method can result in errors when attempting to update the TCP state using an ICMP packet. Also remove the localAddr field of testbench.Connection and instead compute it on the fly as needed for UDPIPv4 and TCPIPv4. PiperOrigin-RevId: 315969714
2020-06-11Merge release-20200522.0-133-gaf6ec7b73 (automated)gVisor bot
2020-06-11Add Generate method in merkletreegVisor bot
A method is added to generate a merkle tree for data, and store the generated tree in the output. PiperOrigin-RevId: 315966571
2020-06-11Merge release-20200522.0-132-gd2cc9a888 (automated)gVisor bot
2020-06-11Factor out flipcall mmap for internal usegVisor bot
PiperOrigin-RevId: 315959279
2020-06-11Merge release-20200522.0-131-gb39cc6a80 (automated)gVisor bot
2020-06-11Add merkle tree size measuregVisor bot
This change creates a merkletree package which will be used in the future for an implementation of file system API. PiperOrigin-RevId: 315952451
2020-06-11travis: set the pipefail optionAndrei Vagin
The travis job has to fail if make smoke-test fails. Reported-by: Bin Lu <bin.lu@arm.com> Signed-off-by: Andrei Vagin <avagin@gmail.com>
2020-06-11Merge release-20200522.0-130-g0c7a5bc69 (automated)gVisor bot
2020-06-11Add nogo TODO.Michael Pratt
PiperOrigin-RevId: 315911025
2020-06-11Merge release-20200522.0-129-ga085e562d (automated)gVisor bot
2020-06-10Add support for SO_REUSEADDR to UDP sockets/endpoints.Ian Gudger
On UDP sockets, SO_REUSEADDR allows multiple sockets to bind to the same address, but only delivers packets to the most recently bound socket. This differs from the behavior of SO_REUSEADDR on TCP sockets. SO_REUSEADDR for TCP sockets will likely need an almost completely independent implementation. SO_REUSEADDR has some odd interactions with the similar SO_REUSEPORT. These interactions are tested fairly extensively and all but one particularly odd one (that honestly seems like a bug) behave the same on gVisor and Linux. PiperOrigin-RevId: 315844832
2020-06-11Merge release-20200522.0-128-ga87c74bc5 (automated)gVisor bot
2020-06-10Remove duplicate colon from warning log.Nicolas Lacasse
doAction()->log.TracebackAll() will append a colon. PiperOrigin-RevId: 315842611
2020-06-11Merge release-20200522.0-127-gb436b9717 (automated)gVisor bot
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