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2020-09-10[vfs] Disable nlink tests for overlayfs.Ayush Ranjan
Overlayfs intentionally does not compute nlink for directories (because it can be really expensive). Linux returns 1, VFS2 returns 2 and VFS1 actually calculates the correct value. PiperOrigin-RevId: 330967139
2020-09-01Refactor tty codebase to use master-replica terminology.Ayush Ranjan
Updates #2972 PiperOrigin-RevId: 329584905
2020-08-31Remove __fuchsia__ definesTamir Duberstein
These mostly guard linux-only headers; check for linux instead. PiperOrigin-RevId: 329362762
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
2020-08-26tmpfs: 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
2020-07-15Merge pull request #3165 from ridwanmsharif:ridwanmsharif/fuse-off-by-defaultgVisor bot
PiperOrigin-RevId: 321411758
2020-07-13Add ReadAllFd to test utilFabricio Voznika
PiperOrigin-RevId: 321008185
2020-07-09Gate FUSE behind a runsc flagRidwan Sharif
This change gates all FUSE commands (by gating /dev/fuse) behind a runsc flag. In order to use FUSE commands, use the --fuse flag with the --vfs2 flag. Check if FUSE is enabled by running dmesg in the sandbox.
2020-07-07Deflake exec test.Jamie Liu
- Only use MAXSYMLINKS/2+1 symlinks for each of the interpreter and script paths in SymlinkLimitRefreshedForInterpreter to tolerate cases where the original paths (/tmp, /bin, or /bin/echo) themselves contain symlinks. - Ensure that UnshareFiles performs execve immediately after clone(CLONE_VFORK) (no heap allocation for ExecveArray/RunfilesPath). - Use lstat() rather than stat() for the existence check in fs_util's Exists; the latter will fail if the symlink target does not exist, even if the symlink does. PiperOrigin-RevId: 320110156
2020-07-01Add test env variable "fuchsia"Jay Zhuang
... so that Fuchsia gets the same special cases applied to gVisor in tests when this envrionment variable is set. PiperOrigin-RevId: 319239064
2020-06-18Fix vfs2 tmpfs link permission checks.Dean Deng
Updates #2923. PiperOrigin-RevId: 317246916
2020-05-21Add IsRunningWithVFS1 to test utilFabricio Voznika
VFS2 is adding more functionality than VFS1. In order to test new functionality, it's required to skip some tests with VFS1. To skip tests, use: SKIP_IF(IsRunningWithVFS1()); The test will run in Linux and gVisor with VFS2 enabled. Updates #1035 PiperOrigin-RevId: 312698616
2020-04-03Add missing newlineTamir Duberstein
PiperOrigin-RevId: 304659346
2020-03-03Move temp_umask to test/util.Adin Scannell
PiperOrigin-RevId: 298667595
2020-02-19Add basic microbenchmarks.Adin Scannell
PiperOrigin-RevId: 296104390
2020-02-05Add notes to relevant tests.Adin Scannell
These were out-of-band notes that can help provide additional context and simplify automated imports. PiperOrigin-RevId: 293525915
2020-01-31KVM platform does not support 32bit.Ting-Yu Wang
Fixes: //test/syscalls:32bit_test_runsc_kvm Ref change: 5d569408ef94c753b7aae9392b5e4ebf7e5ea50d PiperOrigin-RevId: 292563926
2020-01-30Simplify testing link rules.Adin Scannell
PiperOrigin-RevId: 292458933
2020-01-30Merge pull request #1471 from xiaobo55x:syscall_testgVisor bot
PiperOrigin-RevId: 292445329
2020-01-30Merge pull request #1630 from xiaobo55x:kOLargeFilegVisor bot
PiperOrigin-RevId: 292419699
2020-01-28Prefer Type& over Type &Michael Pratt
And Type* over Type *. This is basically a whitespace only change. gVisor code already prefers left-alignment of pointers and references, but clang-format formats for consistency with the majority of a file, and some files leaned the wrong way. This is a one-time pass to make us completely conforming. Autogenerated with: $ find . \( -name "*.cc" -or -name "*.c" -or -name "*.h" \) \ | xargs clang-format -i -style="{BasedOnStyle: Google, \ DerivePointerAlignment: false, PointerAlignment: Left}" PiperOrigin-RevId: 291972421
2020-01-27Create platform_util for tests.Adin Scannell
PiperOrigin-RevId: 291869423
2020-01-27Fix header ordering and format all C++ code.Adin Scannell
PiperOrigin-RevId: 291844200
2020-01-27Standardize on tools directory.Adin Scannell
PiperOrigin-RevId: 291745021
2020-01-23Unify the kOLargeFile definition in syscall tests.Haibo Xu
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: Id9d6ae98305a4057d55d622ea4c3ac2228fea212
2020-01-21Change to standard types.Adin Scannell
PiperOrigin-RevId: 290846481
2020-01-21Merge pull request #1492 from majek:err_typo_in_netstack_testsgVisor bot
PiperOrigin-RevId: 290840370
2020-01-17Enable build of test/syscall tests on arm64.Haibo Xu
Signed-off-by: Haibo Xu <haibo.xu@arm.com> Change-Id: I277d6c708bbf5c3edd7c3568941cfd01dc122e17
2019-12-30Add test/util/save_util_linux.cc:MaybeSave to support arm64Bin Lu
There is no syscall_create_module on Arm64. Signed-off-by: Bin Lu <bin.lu@arm.com>
2019-12-10Do not consider symlinks as directories in fs utils.Dean Deng
IsDirectory() is used in RecursivelyDelete(), which should not follow symlinks. The only other use (syscalls/linux/rename.cc) is not affected by this change. Updates #1366. PiperOrigin-RevId: 284803968
2019-12-04Allow syscall tests to run with hostinet.Dean Deng
Fixes #1207 PiperOrigin-RevId: 283914438
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
2019-11-21Import and structure cleanup.Adin Scannell
PiperOrigin-RevId: 281795269
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
2019-11-13Extract linux-specific test setup to separate fileJay Zhuang
PiperOrigin-RevId: 280264564
2019-10-23Handle AT_EMPTY_PATH flag in execveat.Dean Deng
PiperOrigin-RevId: 276419967
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
2019-10-18test/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
2019-10-01Honor X bit on extra anon pages in PT_LOAD segmentsMichael Pratt
Linux changed this behavior in 16e72e9b30986ee15f17fbb68189ca842c32af58 (v4.11). Previously, extra pages were always mapped RW. Now, those pages will be executable if the segment specified PF_X. They still must be writeable. PiperOrigin-RevId: 272256280
2019-09-27Implement SO_BINDTODEVICE sockoptgVisor bot
PiperOrigin-RevId: 271644926
2019-09-19Job control: controlling TTYs and foreground process groups.Kevin Krakauer
Adresses a deadlock with the rolled back change: https://github.com/google/gvisor/commit/b6a5b950d28e0b474fdad160b88bc15314cf9259 Creating a session from an orphaned process group was causing a lock to be acquired twice by a single goroutine. This behavior is addressed, and a test (OrphanRegression) has been added to pty.cc. Implemented the following ioctls: - TIOCSCTTY - set controlling TTY - TIOCNOTTY - remove controlling tty, maybe signal some other processes - TIOCGPGRP - get foreground process group. Also enables tcgetpgrp(). - TIOCSPGRP - set foreground process group. Also enabled tcsetpgrp(). Next steps are to actually turn terminal-generated control characters (e.g. C^c) into signals to the proper process groups, and to send SIGTTOU and SIGTTIN when appropriate. PiperOrigin-RevId: 270088599
2019-09-16Migrate from gflags to absl flagsMichael Pratt
absl flags are more modern and we can easily depend on them directly. The repo now successfully builds with --incompatible_load_cc_rules_from_bzl. PiperOrigin-RevId: 269387081
2019-09-06Load C++ rules from @rules_ccMichael Pratt
See https://github.com/bazelbuild/bazel/issues/8743. This will be required in Bazel 1.0. Protobuf was updated in https://github.com/protocolbuffers/protobuf/commit/bf0c69e1302fe9568fbe310cc54b37d20a9d16a3#diff-96239ee297e0a92ac6ff96a6bc434ef0. GoogleTest was updated in https://github.com/google/googletest/commit/6fd262ecf787d0dc2a91696fd4bf1d3ee1ebfa14. gflags has not yet been updated, so the repo still won't build with --incompatible_load_cc_rules_from_bzl. Tested with buildifier -warnings=native-cc -lint=warn **/BUILD. PiperOrigin-RevId: 267638515
2019-09-05Deflake aio_test.Jamie Liu
- Most AIO tests call io_setup(nr_events = 128). sizeof(struct io_event) (128*32 = 4096). However, the actual size of the mapping created by io_setup() is determined by: (from fs/aio.c:ioctx_alloc()) /* * We keep track of the number of available ringbuffer slots, to prevent * overflow (reqs_available), and we also use percpu counters for this. * * So since up to half the slots might be on other cpu's percpu counters * and unavailable, double nr_events so userspace sees what they * expected: additionally, we move req_batch slots to/from percpu * counters at a time, so make sure that isn't 0: */ nr_events = max(nr_events, num_possible_cpus() * 4); nr_events *= 2; (from fs/aio.c:aio_setup_ring()) /* Compensate for the ring buffer's head/tail overlap entry */ nr_events += 2; /* 1 is required, 2 for good luck */ size = sizeof(struct aio_ring); size += sizeof(struct io_event) * nr_events; nr_pages = PFN_UP(size); When we mremap() only the first page of a multi-page AIO ring buffer mapping, fs/aio.c:aio_ring_mremap() updates struct kioctx::mmap_base - but struct kioctx::mmap_size is untouched, so sys_io_destroy() => kill_ioctx() vm_unmaps() the mremapped page, plus some number of pages after it. Just get the actual size of the mapping from /proc/self/maps. - Delete test case MremapOver; while it is correct that Linux will not complain if you overwrite the AIO ring buffer with another mapping, it won't actually work in the sense that AIO events will not be written to the new mapping, because Linux stores the struct pages of the ring buffer in struct kioctx::ring_pages and writes to those through kmap() rather than using userspace addresses. - Don't munmap() after mremap(MREMAP_FIXED) returns EFAULT; see new comment in factored-out test case MremapExpansion. PiperOrigin-RevId: 267482903
2019-08-30Automated rollback of changelist 261387276Bhasker Hariharan
PiperOrigin-RevId: 266491264
2019-08-29Implement /proc/net/udp.Rahat Mahmood
PiperOrigin-RevId: 266229756
2019-08-26Internal change.gVisor bot
PiperOrigin-RevId: 265535438
2019-08-02Job control: controlling TTYs and foreground process groups.Kevin Krakauer
(Don't worry, this is mostly tests.) Implemented the following ioctls: - TIOCSCTTY - set controlling TTY - TIOCNOTTY - remove controlling tty, maybe signal some other processes - TIOCGPGRP - get foreground process group. Also enables tcgetpgrp(). - TIOCSPGRP - set foreground process group. Also enabled tcsetpgrp(). Next steps are to actually turn terminal-generated control characters (e.g. C^c) into signals to the proper process groups, and to send SIGTTOU and SIGTTIN when appropriate. PiperOrigin-RevId: 261387276
2019-07-08Internal change.gVisor bot
PiperOrigin-RevId: 257042681
2019-07-08Merge pull request #375 from jmgao:mastergVisor bot
PiperOrigin-RevId: 257041876