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2019-12-03net/udp: return a local route address as the bound-to addressAndrei Vagin
If the socket is bound to ANY and connected to a loopback address, getsockname() has to return the loopback address. Without this fix, getsockname() returns ANY. PiperOrigin-RevId: 283647781
2019-12-03Fix panic due to early transition to Closed.Bhasker Hariharan
The code in rcv.consumeSegment incorrectly transitions to CLOSED state from LAST-ACK before the final ACK for the FIN. Further if receiving a segment changes a socket to a closed state then we should not invoke the sender as the socket is now closed and sending any segments is incorrect. PiperOrigin-RevId: 283625300
2019-12-03strace: don't create a slice with a negative valueAndrei Vagin
PiperOrigin-RevId: 283613824
2019-12-03Add RunfilesPath to test_utilMichael Pratt
A few tests have their own ad-hoc implementations. Add a single common one. PiperOrigin-RevId: 283601666
2019-12-02test/syscal: Don't skip ClockGettime.CputimeIdAndrei Vagin
We skipped it due to the issue in the golang scheduler which has been fixed in go1.13. PiperOrigin-RevId: 283432226
2019-12-02Fix typo, s/Convertable/Convertible/gJay Zhuang
PiperOrigin-RevId: 283345791
2019-12-02Port tests in udp_socket.cc to FuchsiaJay Zhuang
Separate out a test in udp_socket.cc that depends on <linux/errqueue.h> so the rest of the tests can run on Fuchsia. PiperOrigin-RevId: 283322633
2019-11-27Add floating point exception testsMichael Pratt
PiperOrigin-RevId: 282828273
2019-11-26Allow open(O_TRUNC) and (f)truncate for proc files.Ian Lewis
This allows writable proc and devices files to be opened with O_CREAT|O_TRUNC. This is encountered most frequently when interacting with proc or devices files via the command line. e.g. $ echo 8192 1048576 4194304 > /proc/sys/net/ipv4/tcp_rmem Also adds a test to test the behavior of open(O_TRUNC), truncate, and ftruncate on named pipes. Fixes #1116 PiperOrigin-RevId: 282677425
2019-11-22tests: include sys/socket.h before linux/if_arp.hAndrei Vagin
This is how it has to be accoding to the man page. PiperOrigin-RevId: 281998068
2019-11-21Import and structure cleanup.Adin Scannell
PiperOrigin-RevId: 281795269
2019-11-14Fix return codes for {get,set}sockopt for some nullptr cases.Ting-Yu Wang
Updates #1092 PiperOrigin-RevId: 280547239
2019-11-14Check that a file is a regular file with open(O_TRUNC).Kevin Krakauer
It was possible to panic the sentry by opening a cache revalidating folder with O_TRUNC|O_CREAT. Avoids breaking php tests. PiperOrigin-RevId: 280533213
2019-11-14Allow all runtime tests for a language to be run via a single command.Kevin Krakauer
This was intended behavior per the README, but running tests without the --test flag caused an error. Users can now omit the --test flag to run every test for a runtime. PiperOrigin-RevId: 280522025
2019-11-13test/syscalls/proc: check an return code of waitidAndrei Vagin
PiperOrigin-RevId: 280295208
2019-11-13Extract linux-specific test setup to separate fileJay Zhuang
PiperOrigin-RevId: 280264564
2019-11-12Add UDP SO_REUSEADDR/SO_REUSEPORT conversion tests.Ian Gudger
Add additional tests for UDP SO_REUSEADDR and SO_REUSEPORT interaction. If all existing all currently bound sockets as well as the current binding socket have SO_REUSEADDR, or if all existing all currently bound sockets as well as the current binding socket have SO_REUSEPORT, binding a currently bound address is allowed. This seems odd since it means that the SO_REUSEADDR/SO_REUSEPORT behavior can change with the binding of additional sockets. PiperOrigin-RevId: 280116163
2019-11-12Add tests for SO_REUSEADDR and SO_REUSEPORT.Ian Gudger
* Basic tests for the SO_REUSEADDR and SO_REUSEPORT options. * SO_REUSEADDR functional tests for TCP and UDP. * SO_REUSEADDR and SO_REUSEPORT interaction tests for UDP. * Stubbed support for UDP getsockopt(SO_REUSEADDR). PiperOrigin-RevId: 280049265
2019-11-11Update ephemeral port reservation tests.Ian Gudger
The existing tests which are disabled on gVisor are failing because we default to SO_REUSEADDR being enabled for TCP sockets. Update the test comments. Also add new tests for enabled SO_REUSEADDR. PiperOrigin-RevId: 279862275
2019-11-11Remove obsolete TODO. This is now fixed.Bhasker Hariharan
PiperOrigin-RevId: 279835100
2019-11-11Make `connect` on socket returned by `accept` correctly error out with EISCONNgVisor bot
PiperOrigin-RevId: 279814493
2019-11-07Add support for TIME_WAIT timeout.Bhasker Hariharan
This change adds explicit support for honoring the 2MSL timeout for sockets in TIME_WAIT state. It also adds support for the TCP_LINGER2 option that allows modification of the FIN_WAIT2 state timeout duration for a given socket. It also adds an option to modify the Stack wide TIME_WAIT timeout but this is only for testing. On Linux this is fixed at 60s. Further, we also now correctly process RST's in CLOSE_WAIT and close the socket similar to linux without moving it to error state. We also now handle SYN in ESTABLISHED state as per RFC5961#section-4.1. Earlier we would just drop these SYNs. Which can result in some tests that pass on linux to fail on gVisor. Netstack now honors TIME_WAIT correctly as well as handles the following cases correctly. - TCP RSTs in TIME_WAIT are ignored. - A duplicate TCP FIN during TIME_WAIT extends the TIME_WAIT and a dup ACK is sent in response to the FIN as the dup FIN indicates potential loss of the original final ACK. - An out of order segment during TIME_WAIT generates a dup ACK. - A new SYN w/ a sequence number > the highest sequence number in the previous connection closes the TIME_WAIT early and opens a new connection. Further to make the SYN case work correctly the ISN (Initial Sequence Number) generation for Netstack has been updated to be as per RFC. Its not a pure random number anymore and follows the recommendation in https://tools.ietf.org/html/rfc6528#page-3. The current hash used is not a cryptographically secure hash function. A separate change will update the hash function used to Siphash similar to what is used in Linux. PiperOrigin-RevId: 279106406
2019-11-06Fix yet another data race.Bhasker Hariharan
Fixes #1140 PiperOrigin-RevId: 279020846
2019-11-06Fix data race in syscall_test_runner.goBhasker Hariharan
Fixes #1140 PiperOrigin-RevId: 279012793
2019-11-06Use PacketBuffers, rather than VectorisedViews, in netstack.Kevin Krakauer
PacketBuffers are analogous to Linux's sk_buff. They hold all information about a packet, headers, and payload. This is important for: * iptables to access various headers of packets * Preventing the clutter of passing different net and link headers along with VectorisedViews to packet handling functions. This change only affects the incoming packet path, and a future change will change the outgoing path. Benchmark Regular PacketBufferPtr PacketBufferConcrete -------------------------------------------------------------------------------- BM_Recvmsg 400.715MB/s 373.676MB/s 396.276MB/s BM_Sendmsg 361.832MB/s 333.003MB/s 335.571MB/s BM_Recvfrom 453.336MB/s 393.321MB/s 381.650MB/s BM_Sendto 378.052MB/s 372.134MB/s 341.342MB/s BM_SendmsgTCP/0/1k 353.711MB/s 316.216MB/s 322.747MB/s BM_SendmsgTCP/0/2k 600.681MB/s 588.776MB/s 565.050MB/s BM_SendmsgTCP/0/4k 995.301MB/s 888.808MB/s 941.888MB/s BM_SendmsgTCP/0/8k 1.517GB/s 1.274GB/s 1.345GB/s BM_SendmsgTCP/0/16k 1.872GB/s 1.586GB/s 1.698GB/s BM_SendmsgTCP/0/32k 1.017GB/s 1.020GB/s 1.133GB/s BM_SendmsgTCP/0/64k 475.626MB/s 584.587MB/s 627.027MB/s BM_SendmsgTCP/0/128k 416.371MB/s 503.434MB/s 409.850MB/s BM_SendmsgTCP/0/256k 323.449MB/s 449.599MB/s 388.852MB/s BM_SendmsgTCP/0/512k 243.992MB/s 267.676MB/s 314.474MB/s BM_SendmsgTCP/0/1M 95.138MB/s 95.874MB/s 95.417MB/s BM_SendmsgTCP/0/2M 96.261MB/s 94.977MB/s 96.005MB/s BM_SendmsgTCP/0/4M 96.512MB/s 95.978MB/s 95.370MB/s BM_SendmsgTCP/0/8M 95.603MB/s 95.541MB/s 94.935MB/s BM_SendmsgTCP/0/16M 94.598MB/s 94.696MB/s 94.521MB/s BM_SendmsgTCP/0/32M 94.006MB/s 94.671MB/s 94.768MB/s BM_SendmsgTCP/0/64M 94.133MB/s 94.333MB/s 94.746MB/s BM_SendmsgTCP/0/128M 93.615MB/s 93.497MB/s 93.573MB/s BM_SendmsgTCP/0/256M 93.241MB/s 95.100MB/s 93.272MB/s BM_SendmsgTCP/1/1k 303.644MB/s 316.074MB/s 308.430MB/s BM_SendmsgTCP/1/2k 537.093MB/s 584.962MB/s 529.020MB/s BM_SendmsgTCP/1/4k 882.362MB/s 939.087MB/s 892.285MB/s BM_SendmsgTCP/1/8k 1.272GB/s 1.394GB/s 1.296GB/s BM_SendmsgTCP/1/16k 1.802GB/s 2.019GB/s 1.830GB/s BM_SendmsgTCP/1/32k 2.084GB/s 2.173GB/s 2.156GB/s BM_SendmsgTCP/1/64k 2.515GB/s 2.463GB/s 2.473GB/s BM_SendmsgTCP/1/128k 2.811GB/s 3.004GB/s 2.946GB/s BM_SendmsgTCP/1/256k 3.008GB/s 3.159GB/s 3.171GB/s BM_SendmsgTCP/1/512k 2.980GB/s 3.150GB/s 3.126GB/s BM_SendmsgTCP/1/1M 2.165GB/s 2.233GB/s 2.163GB/s BM_SendmsgTCP/1/2M 2.370GB/s 2.219GB/s 2.453GB/s BM_SendmsgTCP/1/4M 2.005GB/s 2.091GB/s 2.214GB/s BM_SendmsgTCP/1/8M 2.111GB/s 2.013GB/s 2.109GB/s BM_SendmsgTCP/1/16M 1.902GB/s 1.868GB/s 1.897GB/s BM_SendmsgTCP/1/32M 1.655GB/s 1.665GB/s 1.635GB/s BM_SendmsgTCP/1/64M 1.575GB/s 1.547GB/s 1.575GB/s BM_SendmsgTCP/1/128M 1.524GB/s 1.584GB/s 1.580GB/s BM_SendmsgTCP/1/256M 1.579GB/s 1.607GB/s 1.593GB/s PiperOrigin-RevId: 278940079
2019-11-05test/root: check that memory accouting works as expectedAndrei Vagin
PiperOrigin-RevId: 278739427
2019-11-04kokoro: run KVM syscall testsAndrei Vagin
We don't know how stable they are, so let's start with warning. PiperOrigin-RevId: 278484186
2019-11-04Add NETLINK_KOBJECT_UEVENT socket supportMichael Pratt
NETLINK_KOBJECT_UEVENT sockets send udev-style messages for device events. gVisor doesn't have any device events, so our sockets don't need to do anything once created. systemd's device manager needs to be able to create one of these sockets. It also wants to install a BPF filter on the socket. Since we'll never send any messages, the filter would never be invoked, thus we just fake it out. Fixes #1117 Updates #1119 PiperOrigin-RevId: 278405893
2019-11-01Add SO_PASSCRED support to netlink socketsMichael Pratt
Since we only supporting sending messages from the kernel, the peer is always the kernel, simplifying handling. There are currently no known users of SO_PASSCRED that would actually receive messages from gVisor, but adding full support is barely more work than stubbing out fake support. Updates #1117 Fixes #1119 PiperOrigin-RevId: 277981465
2019-11-01Add "manual" tag back to runtime tests.Nicolas Lacasse
PiperOrigin-RevId: 277971910
2019-11-01tests: don't use ASSERT_THAT after forkAndrei Vagin
PiperOrigin-RevId: 277965624
2019-10-30Add Kokoro config for new runtime testsBrad Burlage
PiperOrigin-RevId: 277607217
2019-10-30Store endpoints inside multiPortEndpoint in a sorted orderAndrei Vagin
It is required to guarantee the same order of endpoints after save/restore. PiperOrigin-RevId: 277598665
2019-10-30Clean up typos in test names.Dean Deng
PiperOrigin-RevId: 277572791
2019-10-29Update symlink traversal limit when resolving interpreter path.Dean Deng
When execveat is called on an interpreter script, the symlink count for resolving the script path should be separate from the count for resolving the the corresponding interpreter. An ELOOP error should not occur if we do not hit the symlink limit along any individual path, even if the total number of symlinks encountered exceeds the limit. Closes #574 PiperOrigin-RevId: 277358474
2019-10-29Fix PollWithFullBufferBlocks.Bhasker Hariharan
Set the snd/rcv buffer sizes so that the test is deterministic and runs in a reasonable amount of time. It also ensures that we disable any auto-tuning of the send/receive buffer which may happen. PiperOrigin-RevId: 277337232
2019-10-29Disallow execveat on interpreter scripts with fd opened with O_CLOEXEC.Dean Deng
When an interpreter script is opened with O_CLOEXEC and the resulting fd is passed into execveat, an ENOENT error should occur (the script would otherwise be inaccessible to the interpreter). This matches the actual behavior of Linux's execveat. PiperOrigin-RevId: 277306680
2019-10-28Deflake TestCheckpointRestoreFabricio Voznika
PiperOrigin-RevId: 277189064
2019-10-25test/syscall: Remove duplicated gtest/gtest.h.Haibo
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I05a7ec69b98b88931ba4a8adb3e8a7b822006001 COPYBARA_INTEGRATE_REVIEW=https://github.com/google/gvisor/pull/1023 from xiaobo55x:syscall_test d44a8b1f827ed4081997af96cd58ba7449e0a9e1 PiperOrigin-RevId: 276740442
2019-10-24Fix early deletion of rootDirFabricio Voznika
container.startContainers() cannot be called twice in a test (e.g. TestMultiContainerLoadSandbox) because the cleanup function deletes the rootDir, together with information from all other containers that may exist. PiperOrigin-RevId: 276591806
2019-10-24Handle AT_SYMLINK_NOFOLLOW flag for execveat.Dean Deng
PiperOrigin-RevId: 276441249
2019-10-23Handle AT_EMPTY_PATH flag in execveat.Dean Deng
PiperOrigin-RevId: 276419967
2019-10-23Add check for proper settings to AF_PACKET tests.Kevin Krakauer
As in packet_socket_raw.cc, we should check that certain proc files are set correctly. PiperOrigin-RevId: 276384534
2019-10-23Merge pull request #641 from tanjianfeng:mastergVisor bot
PiperOrigin-RevId: 276380008
2019-10-23Remove comparison between signed and unsigned intMichael Pratt
Some compilers don't like the comparison between int and size_t. Remove it. The other changes are minor style cleanups. PiperOrigin-RevId: 276333450
2019-10-21Add basic implementation of execveat syscall and associated tests.Dean Deng
Allow file descriptors of directories as well as AT_FDCWD. PiperOrigin-RevId: 275929668
2019-10-21AF_PACKET support for netstack (aka epsocket).Kevin Krakauer
Like (AF_INET, SOCK_RAW) sockets, AF_PACKET sockets require CAP_NET_RAW. With runsc, you'll need to pass `--net-raw=true` to enable them. Binding isn't supported yet. PiperOrigin-RevId: 275909366
2019-10-18Add more instructions to test/README.mdFabricio Voznika
PiperOrigin-RevId: 275565958
2019-10-18Cleanup host UDS supportMichael Pratt
This change fixes several issues with the fsgofer host UDS support. Notably, it adds support for SOCK_SEQPACKET and SOCK_DGRAM sockets [1]. It also fixes unsafe use of unet.Socket, which could cause a panic if Socket.FD is called when err != nil, and calls to Socket.FD with nothing to prevent the garbage collector from destroying and closing the socket. A set of tests is added to exercise host UDS access. This required extracting most of the syscall test runner into a library that can be used by custom tests. Updates #235 Updates #1003 [1] N.B. SOCK_DGRAM sockets are likely not particularly useful, as a server can only reply to a client that binds first. We don't allow bind, so these are unlikely to be used. PiperOrigin-RevId: 275558502
2019-10-18test/perf: optimize the getdents testAndrei Vagin
* Use mknod instead of open&close to create an empty file. * Limit a number of files to (1<<16) instead of 100K. In this case, a test set is (1, 8, 64, 512, 4K, 32K, 64K) instead of (1, 8, 64, 512, 4K, 32K, 98K). I think it is easier to compare results for 32K and 64K than 32K and 98K. And results for 98K doesn't give us more information than for 54K. PiperOrigin-RevId: 275552507
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